I believe UNC does do a few select direct-admits to KF.
I misread the info in parenthesis about first gen to be the OP’s response to the question.
Also, chances are the OP would be fine with the fallback non-KF econ major at UNC (as long as she likes econ). My daughter works with 2 fellow UNC econ major grads who did not get into KF. They have the same IB analyst jobs and went through the same internship-to-permanent hire pipeline as my KF daughter.