I am not sure about softball generating more money than MBB, but I do know that softball that recently had higher numbers in seat donations than MBB as of a few years ago. And I am sure people will say "Well, softball has a loyal following, history, blah, blah, blah."
There is absolutely no excuse for softball to have higher seat donations than the second largest revenue generating sport in college athletics. Actually, men's basketball is 4th when it comes to fundraising behind football, baseball, and softball. There's an obvious disconnect. No spin to it.