I question whether it is possible to spend more on basketball than football. 85 scholarships vs 13 scholarships, a much bigger coaching and support staff, far more must be spent on recruiting, etc.
If you consider SU a basketball school because they win more in basketball than football, fine. No one is disputing that.
I think the question is more about which sport the school, the alums and the fans care about more? Mostly the university to my way of thinking.
I don't think there is any question SU cares more about football. They have for many decades and that will never change.
Based on turnouts to games in the Dome, at venues in NYC, Raleigh, Tampa Bay, etc, football is more popular than basketball at Syracuse, though it is somewhat close.