Those are problems, but surely they're not purely caused by tech? As in, it should be possible for Chicago, being a fairly large city as is, to absorb new tech peoples without causing too much of a problem?
Probably not, most cities in the US purposefully restrict growth, and most of the affordable ones are only affordable through lack of demand and the slack from white flight, decades ago. Texas is the big exception, they have a ton of cheap land and very few rules.