A lot of the people paying these taxes never agreed to the other end of the bargain either? I mean, you can argue that this is an integral part of the social contract, but if everyone leaves Chicago because property taxes increase astronomically there won't be any tax payers to lecture about how they have to hold up their end of the one-sided bargain. And then the whole thing collapses anyway?

When you move to or live in a city, you sign on to the things the city did/does. That you didn't personally agree to build a new library or hire Sally Jane as a Police Dispatcher is irrelevant.

I think people are leaving Chicago over solvency/funding outlook issues. I have two barely wealthy (single digit millions, almost surely) friends in Chicago who are moving to Arizona and Texas because they worry they're among the juiciest targets to be squeezed in the upcoming years.

this so-called pension crisis has been clear for well over a decade, bare minimum. It was heavily discussed circa 2000.

And apparently on the tax payer to eat it up.