WikipediaThe Boise State Broncos football program represents Boise State University in college football and competes in the NCAA Division I Football Bowl Subdivision (FBS) as a member of the Mountain West Conference. The Broncos play their home games on campus at Albertsons Stadium in Boise, Idaho, and their...
https://en.wikipedia.org/wiki/Boise_State_Broncos_football
Fresno St
Idaho
Nevada
I'm sure they'd RATHER beat BYU. In the same way that BYU would probably rather beat Alabama than Utah (and vice versa, Utah would rather beat Alabama as well I'd guess), just because it means more to beat a better team. But that doesn't make Alabama the rival of both BYU and Utah.