It's not that the fanbase *is* split, but that the fanbase *has* split. Attendance is down 21% from last season (which saw a boost from joining the Big Ten). At this point, we have our second lowest average attendance since we joined the Big East twenty years ago... the lowest was Jordan's first season after the Rice scandal.
Looking back at the last eight coaches, Jordan has the second lowest average attendance (4918)... still well ahead of Littlepage (3308), but behind Hill (5133). We're a far cry from the Waters era, which averaged 6245 or the Bannon era that averaged 6771. Over the Bannon/Waters period from 1997-2006, we averaged 6479 for home games. Right now, we're at 4561... which is a drop of about 30% in attendance from the start of the Hill era to this season.
And that's counting all tickets sold... which includes visiting fans, who have at times outnumbered the home fans..
The people who actually go to Rutgers games are in a niche minority in the state, and of that minority there is a difference of opinion on whether or not the coach should be retained. Most people in the state don't care one way or the other - and probably couldn't even name the coach or any of the players.