Many schools don’t admit by major - and if these majors are in the colleges of arts and science, it likely won’t matter.
But - if you have a preferred major, that’s what you should apply for. If you get into a school you like but not the major, what’s the point. Don’t assume you can transfer.
So to me you are going about this the wrong way. Apply to math if that’s what you want everywhere. If one school says no, there’s another that will say yes.
If you don’t mind me asking, what’s your ethnicity?