Ha yeah, it's trolling on an epic level because pretty much every hardcore Badger fan has picked up on it. The casual MBB fan in the state will probably say "I root for all Wisconsin teams!" while not even realizing Green Bay and Milwaukee or the Horizon league itself are D1. lol
No, without a doubt MN. I mean, there's a high level of animosity towards OSU, Michigan, MSU, etc... but yeah, MN probably takes it. At least historically. Only problem is MN hasn't been much competition for them in recent years, so the actual passion short term may sway to Michigan State or Iowa or whoever the most competitive team is in the west division at the time. (Except in BB it's clearly MU! lol)