is my roommate being creepy?

so i(F25) live with my autistic bf and three autistic siblings who i’ll call T(M27), N(F25) and C(NB?23). N is my best friend and C is the one making me uncomfy. they’re really loud and annoying and are really bad about hearing no but that’s not what creeps me out it’s just really overwhelming. what creeps me out is how they are about sex and some like weird behaviors i’ve heard about. so before they moved in, i learned that they had been fired from a job for sexual harassment because they wouldn’t stop hugging younger female coworkers and they were kicked out of a theatre club for the same reasons. already that gave me the ick. i’ve been raped/assaulted/harassed so hearing that they were moving in made me wary and uncomfortable. when they moved in, things were ok, but they really really attached to me because i’m a trans woman and on hormone replacement therapy like they are and they wanted me to help them be a girl basically. but they’d constantly talk about goth dommy mommies and would like bounce there boobs in front of everyone. and when told firmly by T and N and my bf that it made everyone uncomfortable, they would just laugh like we were joking. they read lesbian smut written by men in common areas. and they know that it’s something other people shouldn’t see because they tell people not to look. they also used to show me like sfw sissy hypno images. one of the turning points for me was this one time they were really annoying me so i told them to go do their homework and they said in like a trying-to-be-sexy voice “yes mommy ____” blank being my name. i said i really didn’t like that and they laughed like i was joking. i wasn’t. i wanted to throw up. i’m getting sick just thinking about it. the final straw was that i recently learned that they just take pictures of people sometimes. they had this picture of some girl saved on their phone for years. i’ve caught people taking pictures of me before and it was violating. i felt sick and dirty. i’m just so sick and tired of their weird behavior and im so tired of them being told that it’s not acceptable and just ignoring it. they still think the girls at their old job liked the hugs. they think the girl they followed home overreacted and that men are over scrutinized. and im tired of having to act like they’re trans. i try so so so hard to pass and be taken seriously as a woman, and luckily i do. however that means that ive experienced the weird shit that men do to women. they don’t pass and don’t really try to. so they haven’t experienced what womanhood is like and they’re kinda weird about women still but they act like they get it now. they make weird misogynistic jokes and it makes me and their sister uncomfortable. the longer i know them, the more i think that it’s just a sex thing or that they’re nb. there’s nothing wrong with either of those. it’s just the way they behave and then ignore when people don’t like there behaviors. i feel sick to my stomach when they’re around me now. but like im worried that im being transphobic and ableist. autistic people get labeled as freaky and creepy for harmless behaviors. they’re also super infantilized by everyone but transphobes specifically do it to autistic trans people by saying “they’re not really trans. they’re just susceptible to social contagion and peer pressure because of their autism”. transphobes also say that we’re predators and invading women’s spaces. and they specifically target trans lesbians by saying they’re incels and autists who were tricked into believing that getting with women is easier as a woman than a man. but it just feels like they’re embodying all these tropes. they set off my alarms but am i just being ableist