Older, abusive brother is too much to live with. It's leaving me stressed and angry 24/ 7

How simple life could've been if I were to move out since he doesn't want to, yet I'm currently unable to work due to physical and mental reasons. I'm not even sure how to explain myself properly because of the emotions I'm bottling up, which makes me want to only punch something, him, or>! harm myself !<if I'm being honest.

I can't stand living with him anymore. I can't stand this life, I just want to be at peace after everything I've gone through. He's part of the reason I never had a normal childhood, long story short, and my parents never wanted to step in and discipline him early. They always said stuff like "what do you want me to do about it?" Because of them doing this shit, my other siblings and I have gone through so much drama and abuse, that one brother always starting things almost EVERY DAY for years just because.

Yet if any of my other siblings or I decide to take matters into our own hands, we're the ones who get in trouble because my parents expect "no drama." For years, they have wanted us to simply ignore the problem and stay quiet. It's extremely frustrating how unconfrontational they are right now, considering how I was always being "disciplined"/ abused for every little thing, despite not even acting up.

This man is already a whole adult with hair all over his body and everything, but everyone is still expecting to walk on eggshells around him. And he uses his untreated anger issues like it's a flex and an excuse for getting away with the things he says/ does. The thing is he also isn't moving out or getting a job, yet gets on me for not having a job or moving out, despite knowing about my condition. I also do some work around the house when I can, while he doesn't and he's perfectly healthy.

I can try to summarize some of the bullshit I had to deal with and what he's done:

- Physical abuse to siblings regardless of sex, age, and conditions (choking, cracking head open, causing one sibling to suffer an asthma attack, using makeshift weapons before, etc). Not sure if this counts but he also caused us to starve multiple times growing up and splashed a cup of water on our nonverbal autistic kid sibling's face before

- Verbal/ mental abuse (constantly provoking, bringing down others, using slurs/ terrible words on people, belittling, attempting to control every aspect of younger siblings' lives, invading privacy, ignoring personal boundaries, threatening lives, threatens to lock autistic siblings in an asylum just because, gaslighting, emotional invalidation, etc).

- Animal abuse >! (Beaten pets on various occasions either with fists or makeshift weapon, caused one dog to become violent when he never was violent due to the abuse, screamed at puppy litter, threatened pets, etc). !<

- Tries to start physical fights over any little thing/ would find a way to start one if people choose to ignore (goes up to your door and talk badly about you out loud, even going as far as to make up offensive lies just to provoke)

There's way more than this btw, but it'll be too long if I add on. Just know no one in this household likes him yet they aren't confronting him at all. I already did multiple times in the past, but I was always in trouble for "causing drama" when I'm just standing up for myself. No one else wanted to stand up for me against him and I'm not being some punching bag. I believe the stress from this man, along with my other relatives/ other personal issues have started to affect my heart months ago and it knocks the air out of me whenever I get too stressed, whether physically or mentally.