AITA in this situation

I previously posted in this group over my judgmental MIL who is consistently abusive emotionally and rude to me. My in laws are my husband’s best friends as he puts it. I’ve not had much of an issue with my FIL only that he will stay on MIL’s side fully when she’s said some out of pocket words but will tell us secretly how he disapproves of what she does in these times. MIL and FIL get into it often because of her mouth but they just stay together in the end and function toxically in this way. Anyway, the actual point of the post, back in September my MIL accused me of not loving nor supporting my step kids or my husband. My husband has 2 daughters from a previous marriage. She did this while txting me asking if I was attending their gymnastics practice and I said I would not be due to feeling sick. (I was pregnant at the time and she didn’t know). So she txts my husband and said that I don’t love nor support him or his daughters just from this. I called her out and she tried to lie and say she didn’t say that and then tried to defend herself and I shut it down. We’ve not spoken since. We’ve had many incidences in the past with similar behaviors. Telling my husband I only want him for his money and even trying to help his ex wife gain full custody over his 2 children in custody court. Point is, I don’t trust her and I feel it’s very clear she doesn’t like me which is fine. We don’t all have to like each other. But she’s continuously abusive toward me and saying I’m sorry doesn’t cut it because I’ve let things go a lot on the past against my better judgement and for my husbands sake and the abusive behaviors continue because she’s never with consequences. Naturally, my husband gets upset with her when this happens for a while and then wants to move on but when I’m still the one upset I’m the problems. So this all becomes my fault and I’m “holding a grudge” and it’s family, why can’t we all just get along? I had asked FIL for help one day getting one of the girls from day care and he flat out told me he would not help me unless his wife came along and so I told him I was uncomfortable with that and won’t reach out further. Not talking to him now. The thing is, this is a huge issue with my husband. He is saying I’m full of hate and holding grudges when I’ve literally done nothing but be nice to these people and I’m completely blind sided when they act this way. I could go on about the crappy comments made by MIL but it would be a book at this point. Another example is MIL telling me I am not allowed to show up for my step daughter’s first day of kindergarten because his ex wife won’t be nice to me and to know my place. But then when I don’t go to a gymnastics class I’m the worst step mom. There’s no winning. My husband is not understanding me and the fact that he could continue to talk to them after the constant disrespect they have shown me has caused animosity. I’m not asking that he stop talking to them but if any of my family members treated my husband this way it would be the one time and NEVER again. For the AITA part, I am a firm believer that when someone doesn’t like you, then they should not be around your kids because they are part of you and therefore it could be a safety issue. My MIL makes comments about my husband’s body, if he’s gained weight, she doesn’t like his hair or his painted nails, tattoos and to look a certain way that’s up to her standards. I don’t want that bleeding on my kids. I can’t control when they see my husbands daughters (my step daughters) but I have a 7 year old daughter from a previous relationship, a 1 year old I share with my husband and I’m pregnant with our first son. My thought process is removing their contact from my children specifically. This has upset my husband, with him now saying “I just want my parents to see (my 1 year old) for Christmas.” He’s not even asking if my oldest daughter can see them. It’s just upsetting. They have not seen me my entire pregnancy and I won’t be exposing my newborn to them either. I know this will hit my husband hard when I make that clear. It’s so bad my husband has said we may not even be able to stay married because of this and blamed me for him not seeing his parents anymore.

ALSO, MIL was the last to know of my current pregnancy because I’m not speaking to her and his family demanded that my husband apologize to her for this. And my husband did! My husband told his father when I was 7 weeks, I feel like my husband didn’t tell her because he knows she is judgmental. He told all his other family members but her. When MIL found out about my son, she said “Very exciting to have a baby boy instead of another girl.” Like wtf. Then she went on a rampage about how her feelings were hurt she wasn’t told. She got her apology. But it doesn’t matter when my feelings are hurt. Ever