The other two Cal Poly schools were mentioned already but Cal Poly Humboldt is also developing a cybersecurity major. I’m not sure whether it will launch in time for you or not, but at minimum, you could major in CS, and there should be enough cybersecurity coursework to specialize in that direction. It’s a very trans-friendly campus and community.
Portland, OR, is one of the most trans-friendly cities in America. Portland State University would be a safety for you, but it punches way above its weight in CS, and houses the Mark O. Hatfield Cybersecurity & Cyber Defense Policy Center. Cybersecurity is not a separate undergrad major, but it is a strength: Cybersecurity at Portland State
Michigan Tech could be worth a look Cybersecurity BS Degree | Michigan Technological University Its political climate is pretty evenly balanced between conservative and liberal students, so not as overwhelmingly progressive as some places, but there is gender-inclusive housing and state laws are favorable. If you’re looking for a smaller, highly-regarded STEM-focused public with an RIT-like vibe and a specialty degree program in cybersecurity, this could be one to consider.
Also, in terms of UC schools, UC Santa Cruz is probably the most trans-friendly of all of them, and their CS is excellent. If you’re going to do the UC application at all, I’d add more campuses than just Santa Barbara. They’re very expensive OOS, though - if your GI Bill funding is just for the first two years, I’m not sure how you’d fund years three and four at those prices, unless I’m misunderstanding something.