Thanks for the answers. I can sometimes separate the character and the actor in cases of the actor being an asshole, but I legitimately consider Anti-Vax people dangerous, people literally died needlessly because of the bullshit they spout, which to me crosses a line. I'm not going to judge anyone who would still want to pay to see BP2, Quantumania, etc, but I can't in good conscious ever give Disney any direct financial support for this movie.
If she had a reduced role and ended the film being written out or really de-emphasized I could justify supporting the movie, I realize I'd probably have to skip a lot of movies if I just never watched stuff that employed assholes, but in this case Disney doubling down on her is a step too far. I'll watch the film whenever it arrives on Disney+, but I just personally can't justify paying to see the film if thats the way they're going. Its not a statement on the quality of the movie, I'm sure I'll end up enjoying it when I see it, but its just a thing I can't get past.