I know many trans students who have been admitted to colleges (my kids’ friends). MIT? I don’t know anyone who’s been admitted there recently (trans or cis), but I doubt they are discriminating. At the same time, LGBTQ+ identity is not a leg up in applications – you wouldn’t fill a “diversity bucket” (which at this point is technically non-existent, because it’s very difficult for colleges to openly prioritize diversity in admissions). It’s a neutral factor. If admitted, it will matter for housing options, but that’s it.
This is a dangerous time to be trans – I know. But there are absolutely universities where you can live authentically in states that will protect you as much as possible. I recommend, in your college search process, that you look up LGBTQ+ student groups at the schools that interest you and contact them to see if you can talk to someone about life on campus. That might help you find some honest information.