AITA for leaving my stepdad to be evicted alone

Hi, i’m 19. My dad died when I was 15. He OD and I was the only one in the room with him. By the time help arrived he was already gone. My mom remarried less than a year later. At first I was neutral about my step dad. He made my mom happy and that’s all I cared about. As I grew to know him I saw him as family. maybe not as a father but more like a close uncle or something similar. We were already losing my childhood house due to my father’s drug abuse. So we moved. Over the past 2 years I have moved 6 times. My step dad has never kept a steady job. My mom works part time jobs and is attending college. I worked almost a full time job on top of an internship while going to college. We would move into a house, they wouldn’t pay rent, we’d be evicted and the cycle would continue. My mom was being paid social security or life benefits or something like that for me and my brother. it was 4k a month in total. But that’s not enough to sustain a family of 5. at one point my family rented out a 2 bedroom house, so i lived in a camper for a short period of time. it was also so i could keep my dogs. then i moved into a trailer. I was financially independent even while my mom was getting paid to take care of me. eventually I turned 18 and she lost my benefits, that’s when things really started to go downhill. I had to pay their rent one month and they didn’t pay me back in time for me to pay mine. so i moved back in with them. they would just fight. every fucking night. I would have to be the one to break it up, it was like dealing with toddlers, they would just hurl insults at each other. at one point i got them both and my brother a job at my place of work. all of them were either fired or quit within a month or two (I’ve worked there for two and a half years and i have had no problems with any manager whatsoever) i was pissed. but i I ever showed it I would get guilted for not taking my “families” side. They borrowed 2k from me. after hour landlord threatens to KILL me and my brother (this was a 55 year old threatening a 16 and a 19 year old btw) eventually we moved into our most recent rental. Still no job from step dad, mom’s barely working at a fast food place and all they ever do was fight. I’ve had to stop my mom from trying to end herself multiple times and i’ve had to almost play “couples” therapy with them (have one say their feeling the other say theirs then try to get them on the same page, IF ONLY THEY WOILDNT TALK OVER EACHOTHER LOLE TODDLERS 😭) now my step dad lies a lot, i don’t know why, it’s really hurtful. I think he’s stolen hundreds out of my wallet but i also have no proof and really don’t wanna believe it. He lied about how he and his ex wife broke up )said she cheated when it was actually him, ALSO got them evicted when he was with them, etc) But this was the worse one yet. First off they put my name on the lease without asking, one of them must of forged my signature. They said it was because i was over 18 and HAD to be listed but they didn’t tell me that until after we got papers on our door. papers with my name on them. we were being evicted. My step dad said that they couldn’t do that because of something he was wrapped up in. he told us not to worry about it. it’ll all be okay, they can’t kick us out. Until 8 hours before we would’ve been told to leave by police. He took a shit ron of his anxiety medication and was high as fuck. he said they still could kick us out and my mom and him fought before he went into a deep ass sleep. my mom packed up her and my brothers clothes and took a trip to my grandmas house while i spent the next 6 hours packing everything alone (i couldn’t bring myself to wake up my brother just to tell him we were being kicked out) so we packed everything in the cars and left. without my stepdad. My mom’s side of the family hates my step dad. they dug into his past and called him out on a lot of stuff he was lying about. But I truly do still see my step dad as family i’m hurt, absolutely (he alone now owes me 1200 not including the 2k they owe me for rent, it was 1200 i didn’t know was going to be taken out of my account) But i know he loved my mom, and my brother and me. and it hurts. My grandma said he’s not allowed on her property which i can respect but the fact that he woke up to the police banging on the door and he was probably searching for my mom and my family actually just breaks me. I can’t sleep, If i were in his shoes i would’ve been so fucking scared and sad and i feel so bad and guilty, i felt guilty driving away. But like im still mad at him. My credit is going to be horrible now and now im going to struggle to find a place of my own once a graduate due to everything being in my permanent record. My mom wants me and my brother to forgive him and move back in with him asap. but i don’t know if i can force myself to be their babysitter anymore. I just have so many emotions going on and this is such a summarized version of everything. but i just keep thinking of how scared he must’ve been and i can’t sleep.