AITAH for Not Liking my Brother who Wishes Death on Me

So to start the story, I am 27(F). I have always been close with my brother as I was growing up but as we got older, his political beliefs got a lot to handle. We have always been opposite sides of the political spectrum, me on the left and him on the right. I have always tried to not mention anything about politics because literally anything I say upsets him. He is the type to complain about Left Wing SJWs but base his whole identity on being far right.

When I was younger and more immature, I would often bring up politics in the household which would start arguments. I have since grown up and I purposely avoid politics like the plague now. Although, I am often unsuccessful. When I went to visit him one time I brought up Video Games we both liked to play and he just immediately went into a rant about how "Video games are woke now" and "There isn't enough White Men in Video Games anymore". Yes, he is a racist, misogynist, homophobe and transphobe. He blames women for his problems, thinks the country should be more white and literally won't go to a city cause he is literally scared of LGBTQ+ people. I'm not even joking. He is terrified of being hit on by a dude that he refuses to go to certain cities and refuses to leave the house when its pride.

You could already tell my brother is extreme even to most right wingers. I've been attempting to salvage a relationship with him for the sake of my parents who are lovely people. However, things got more extreme with his behaviour recently.

It all started when we were just chatting about random things and I did my best to avoid politics or subjects that would upset him. He then casually brought up how trans people should be ... lets say to avoid upsetting people ... removed from life. For context, I am a trans woman. To give my brother the benefit of the doubt, I am not out to him yet (for obvious reasons) but this is not something you say even if you believe the person you are talking to is cis. This isn't the first time he has threatened me either. He once threatened to "Beat me up in an inch of my life" if I didn't come off my medication. Like most Insane right wingers, he doesn't believe in modern medicine and is an anti vaxxer. I need my medication to live so I can't exactly stop taking it. Whenever I Visit I just take it when he's not looking.

This is just how he treats me. How he treats my parents is way worse in my opinion. With me, it's threats he probably can't follow through with. I'm a lot stronger than he is so he is going to lose if he tries to hurt me. With my parents, he simply uses them and then discards them when he doesn't need them anymore. The the whole thing repeats when he decides needs them again. He lived with my parents rent free until he could afford a place of his own. He bought a place but didn't consider things like bills and utilities. He is now living with my parents again trying to sell the money sinkhole of a house. Along with his using of my parents to save on rent, he also eats the food they buy for themselves. I had to see the complete disappointment on my parents face when the Cheesecake they bought for a special occasion wasn't there cause my brother ate it with his girlfriend. He also ate the meals they had been preparing for themselves since they work long gruelling days and don't have time to cook.

His girlfriends have also been horrible to my parents. The first one called my mom too old to hang out with while staying rent free in my parent's home along with spending entire evenings using the entire kitchen to cook, not allowing my parents to make food in their own kitchen. She even lied to my parents about her social distancing during the pandemic and asked my parents to take her and my brother to the local town for some shopping only to take the train from there to the big city against lockdown protocols. This put my parents in danger and almost led to my dad dying of Coivd after he caught it from her and my brother. After my brother married her for a couple months, they divorced. The next girlfriend wasn't any better. I went round my parents house and my brother and his girlfriend decided to stay with my parents for months. She would cook meals between midnight and 3am. That wouldn't have been an issue if it wasn't for the fact that my parents house was small and she would cook insanely spicy foods. When I went around my parents to stay just to visit them with my brother and his girlfriend there I woke up in the middle of the night feeling as if my throat was on fire and unable to see through my enflamed eyes as my brother's girlfriend cooked in the kitchen. I dealt with this for a couple weeks. The Girlfriend also thought she knew more about my parents dog than they did and ended up feeding her "specialised meals" at around 1am and didn't tell my parents who fed her another bowl in the morning. Of course the dog put on a lot of weight and when my parents found out what she was doing, they were furious. My parents had to deal with this for months. They were visibly tired, especially with how my brother's girlfriend would also crank up the thermostat to boiling temperatures in the middle of the night, took long showers and ended up being in general a financial burden on my parents.

After all of this, my parents don't do anything to try and correct his behaviour. They don't set boundaries, they don't tell him off, they don't force him to find a place of his own, and they don't try to teach him what he is doing is wrong. They simply sit back and put on fake smiles until the brother's girlfriend leaves. This was much the same when we were growing up. If my brother did something wrong, it wasn't his fault but mine. I was blamed for things that I had no knowledge of cause my brother would blame me for it.

Then comes the part where I am treated like the A-hole. My parents want me and my brother to get along and told me that I am the A-hole for not just putting up with his behaviour and not "understanding that he isn't as feeling as me". They say I have to understand my brother more but I really don't want to. I've already seen enough and I know what he does. I've been feeling bad about wanting to cut off contact with my brother cause apparently I need to pity him more. But I don't want to. My parents are good people and don't deserve the disrespect from him but he is a monster they created by allowing him to get away with bad behaviour and chopping up his want to kill people to "just political opinions that I had to agree to disagree with".

The funny thing is he's seeing the consequences of his actions now. He has always supported the Orange Dictator's bombings of other countries, and said "he hopes they bomb Iran next". He got what he wanted ... now he's probably regretting it cause the bombings took place while he was on a holiday in the Middle East. Now he is stuck there unable to get home because of it. I don't feel bad for him cause he spoke of people in war zones as "collateral damage to build a better world". Now it is affecting him. Myself and my parents also told him not to go but he didn't listen.