Assuming you don’t get an acceptance that you like better, I’d advise you to go to UNC. But if you really don’t want to go to any of the schools that you got into, you could zoom through the community college near you that has a transfer agreement with Rutgers, transfer even to start in sept of 2024, with an associate’s degree, and finish after only two years at Rutgers. But if you’d wanted to go to Rutgers, you’d have applied there.
You absolutely should not take a gap year to do community college with the intent to transfer into some highly selective school that you got rejected from, or any other highly selective school. Even a 4.0 at community college from summer and fall of '23 will not improve your application, since colleges know that community college classes are usually far less rigorous even than 4 yr state college classes, let alone the classes at highly selective schools. If you had some incredible opportunity to do something amazing, that far outshines anything that you did in high school, then MAYBE a gap year to do it starting the day after high school graduation, and reapply in the fall, but it’s highly unlikely that you have such an opportunity, and without such, you’re unlikely to see any different results.
Swear word! You got into UNC Chapel Hill, a dream school for many students, which is sure to have any major you’re interested in. Why in the world wouldn’t you want to go there? Especially since it appears that your family is willing to foot the bill for it.