I would never speak to my family again if I didn't need to
That feels like something very drastic, why won't you talk to them anymore?
They are racist and they spend my money.
Your family doesn't sound very nice. It's okay to pull back from people who are terrible, even if they're family.
Yeah I know right? I just can't deal with their attitude anymore.
While I agree with what you're doing, I do hope you find it in your heart in the future if they had a change of heart and decide that they will turn out for the better. They're still your family and if they want your support to change, they should have it.