My family member has gone crazy with conspiracies and it's driving me away

Hello everyone I'm using a throwaway account as to not point any attention towards my main account.

Firstly I want to introduce myself, currently I am 22, I moved out of my mother's house a year (at 20) after my parents divorced. They were married for a long time but due to constant fighting throughout the years in the end everything just reached a tipping point and I supported my mother for getting a divorce as I could see it being better than what we were living through. I was on my mom's side of the divorce and at the beginning I was at odds with my father. That relationship has gone better over time but I still have my boundaries and distances. I've been through and currently going through struggles due to the messed up family dynamics and the divorce as well. My relationship with my mother was close however ever since 2 years ago she has been slowly believing these conspiracies about how the internet and waves can be used to harm the human body and that people can cause pains in the body through some radio waves. Her stories are so elaborate she points to politicians, random people, and family members for people who can cause this. At first I thought it would just be a passing moment and I have ignored her ideas however over the years her resolve has only gotten stronger and when I tried to question her on it she gets defensive and starts to argue her point. She believes that there are people against us causing harm through the quantum realm and that certain people are mind controlling others to commit murder or cause harm in the workplace against her. She believes these people are causing the wars, and aprtfron these people there are some that are protecting her. After the divorce she went back into the workplace after decades.

No I'm not sure what to do I feel like my mother is going crazy, and this is crazy for me to ask but is there such a thing of what she described? I'm honestly going through so many mental turmoils right now since she is my mother, however every time I talk to her and every time I question her believes she gets defensive and then she turns it on me saying that I'm not with her or I'm fake or I know of this technology and I'm hiding it or denying it. I don't know what it is and I tried looking into it and I can't find a single thing and there is no evidence for this. My brother is also against this conspiracy from the start that was made by my mother and he has set space from her. In fact the relationship was even better than mine before the divorce however ever since she started talking about this my brothers and my mother's relationship has been bad and now the same thing is happening to me. now I can't take it and I just don't know what to do I set myself some distance from my mother but in the end it's just hurting me. And the worst part is she's saying that this technology or conspiracy or whatever has people controlling me turning me against her. I don't know what to do and every time I try to talk to her she's just more resolved and in a way the way she frames her arguments makes a little bit of sense. I can see her thought process but it's so confusing and it's so out of place and so ridiculous that I can't possibly believe it without solid evidence which she hasn't provided. Before I never really felt anything after we fought but now I'm just feeling angry, sad,sorry and I'm not sure what to do. It's not like she sits at home all day she works she has a job, a good start to her career. It seems like she's pushing all of us away with these conspiracies. I told her to go to the doctor and at least see if there's something wrong but she says she's fine and she's currently also getting additional degrees as well so she it's not like she's not educated or anything in fact she's pretty smart academically.

I just want to vent and honestly don't even know what to expect from anyone reading this post. I expect everyone to read this post in a confused manner but if someone can help me at least process what I'm going through and at least give me some advice I want to do next how I should approach the situation for the future. Any help will be appreciated. After rereading this post I know there's a lot of run-ons and disorganization but I just don't know how else to write this so sorry in advance.