Well, the point of bringing up those three markets is that they all have either 3 or 4 of the major pro sports just like we do. (In Seattle's case, the Sounders are so popular, you may as well count them, though I suspect they'll get an NBA team again soon.)
From those older than me (I became a fan around 1981 - possibly the lowest point of the program) it's institutional incompetence. Apparently from the late 60's on, the administration made it a point to de-emphasize football. I can't say all sports, because hockey was successful, and basketball had its moments.
They let Memorial Stadium rot, then moved off-campus in a disastrous move. They had AD's that didn't care about revenue sports. They hired a number of really terrible coaches. (Guetekunst, Wacker, Brewster). They were gun shy about hiring any coach with any controversy after Holtz left them with the Luther Darville thing, and then the scandals under Dutcher and Clem in basketball. Allegedly, they could have hired Mike Leach when they hired Kill but the AD said no way.
And I've said before, any major coach is going to demand proof of booster NIL money to be able to pay the best players going forward.
It's been a perfect storm of crap.