My Girlfriend and I have been dating for a year now and I feel blessed that I found someone that I can share my time with. However, throughout the course of the relationship, she has been banned from seeing me for more than a day at a time, been offered money not to date me (this was when her grandfather found out I was black), and they have banned her from using her car to come see me (so I’ve been responsible for picking her up and bringing her back to my apartment the entirety of this relationship). Most of these actions have stemmed for her mother (later admittedly) trying to break us up or keep us away from each other. All of this happened in the first 6 months of our relationship, and after some growing pains my girlfriend and I have been able to see each more and grow as a couple. I get along with her family (by staying away usually) and things have been calm. Until Most recently (last Thursday), when I was accused of being perverted, cheating, stealing money, and using my girlfriend for sex. All without any proof or merit, simply because my girlfriend revealed that she planned to move in with me, after a year of us dating and probably 8 months of us saying how we wanted to live with each other (this was no secret, my entire family knows and talks about it often) After this had happened, and I message her mother to ask if “everything was ok, and if there’s anything I can do to help” she emailed me a list of questions asking my intentions of what I will do with her daughter (I will provide pictures if anyone is curious). I answered most, and asked how she would feel if my mother made the same claims against my girlfriend and she responded that “she doesn’t care how I feel about her, or what my mother thinks” I don’t think I can forgive this, I told my girlfriend that I still love her and don’t want this splitting us, but I can’t be near her mom or have my kids near her. We agreed (after several colorful debates last night that started when her mom got offended that I asked how she knew about my recently born nephew or brother) that until she apologizes that she will be kept away from any kids that we have in the future (this was my idea).
Even if she apologizes I don’t think that I can get over what she did, it’s been a week and she hasn’t offered anything to me despite having multiple ways to contact me, and when my girlfriend and I got into an argument last night, it was over the fact that her mom was upset, that I was upset at her for what she’s done and my girlfriend is defended her by saying “she’s trying” and that I need to “let it go” or “get over it”

Am I wrong to say I don’t think she should be allowed to see our kids, or attend our family events? Should I forgive this again and pretend like this didn’t happen, despite not having an apology?

TLDR; My potential MIL has been treating me like garbage and despite being cordial, she took a recent opportunity to shit on me, and now I’m supposed to forgive her and play nice as if nothing happened