What should I do?

I know I post alot about my MIL issues, but here we are again. I have dealt with so much fucking bullshit at this point, I'm just done with dealing with it, and letting stuff go to be pushed under the rug. My MIL has openly said how she doesn't like me and thinks I'm ruining her relationship with her son. When that's the farthest thing from the truth. She's started so many problems and drama lately, I almost expect it. But it's spread from just her, to now her husband, and my husband's sister. After I have gone out of my way to try to work this out and compromise....but nothing I say is working.

And I haven't even done anything wrong!!!!! The only fucking thing I have done, is put my children's health and well being before anyone's feelings. Like a good mother should!

I have tried and tried to talk to them about their issues, but now no one is speaking to me. I am filled with such dread and anxiety at the thought of having them over for Thanksgiving. I just don't know what to do. She is so toxic and selfish, and I've honestly had enough. I can't take this anymore!

I told my husband how I felt, and he was just like "I'm sorry you have to deal with this, but we can't not see them on Thanksgiving.". And left it at that. This has been going on for over two months. And it reached my breaking point today.. What do I do? Just go along with it and fake a smile to please everyone, or stand my ground and say no more?

PS: I'm also starting to see a distance between my husband and me...part of me wants to just do whatever it takes to make him happy, but the other part doesn't think I deserve to constantly take these hits and be expected to keep the peace and act like I'm perfectly fine. I'm not fucking fine! I hate this whole situation but don't know what else to do to make it better....if talking with them won't work, what will?