Toronto 2 and Hamilton might as well be the same thing, which will never be allowed.
No doubt. But that still leaves you with six minimum.
Before getting into markets that COULD work if circumstances were right (i.e. Austin, San Antonio, Virginia Beach, where you're not going there until after Houston, or maybe not Virginia because the Carolina team is in Raleigh instead of Charlotte).
Issue with Austin is the University of Texas - might as well be a pro team.
It's the same idea as Columbus, which is home to Ohio State. I'm not quite sure if the NHL considers Columbus to be a successful franchise (although to be clear it's doing well enough and isn't moving anywhere).
Eh. Yes there's sports dollars competition, but mentioning Ohio State and the University of Texas isn't apples to apples when no one mentions ALL the others big colleges. There's not big massive colleges in every major league city, but most of the major cities have MULTIPLE smaller schools. Like no one on the East Coast is as big as Texas... but Philly has SIX division I schools, who combined have double the average attendance of the 76ers.
UCLA, USC, Cal, Stanford, St. Mary's, Washington, Utah, Colorado, Arizona St, San Diego St, San Diego (and another), TCU, SMU,North Texas, Houston, Rice, Northwestern, Butler, Cincinnati and Xavier, Pitt, Boston College (not as big but three others), Rutgers, St. John's, Seton Hall, Temple, Villanova (and St Joe's, La Salle and two others), Georgetown (and GW/Mason), Charlotte and Davidson, NC State, Miami (plus FAU/FIU), USF, UCF.... all of those schools listed by name are in the top 10 conferences, and that's not a complete list.
Why wouldn't San Diego be a contender for an NBA franchise?
They would/should be. The NBA is kinda dumb. We're talking about talent dilution while they really only need nine guys for a new team. Rosters are bigger but guys 10-14 hardly ever play.
I also think the Clippers play a role there. They've been like, the unwanted stepchild of LA for decades and have actually been like a real team only in the last decade. If the Clippers were going strong, I think there'd be more NBA attention on San Diego.