There is a literally an abysmal divide (to which there is no bottom) in the fan base of the UConn institution. Those who only like UConn basketball blame the football program for virtually all of the basketball programs' misfortunes, post-January 2015. Heck, Jalen Adams hit a 75 foot shot despite Bobby Puyol missing 5 FG's that year. Fan bases of most universities embrace the entire athletic department. If they don't, they at the very least keep their trap shut. They don't openly lobby against other programs within their own athletic department.
In my experience, ALL UConn football fans support the basketball programs. In 42 years, I have never come across a single football-only UConn fan. Think about it. If they do exist, they would have been born in the early/mid-90's, growing up when the football team was going to bowls, culminating with the Fiesta Bowl in 2011. What was UConn's basketball record then? Two National Championships, three Final Fours, and soon to be one more of each. Yup, I could see how a "football-only" fan would dislike a basketball program like that. The only way that happens is if someone hates the sport of basketball.
What fan of UConn hates basketball? If you are not a UConn basketball fan, you are not a UConn fan. simple as that. There is no logic to the basketball-only argument.