Their actions have a moral cost and the people who pay those costs aren't the tech transplants, they're literally every other kind of person who slowly finds themselves unable to live in a place that is just as much their home as the owners of property. Schoolteachers, firefighters, garbage truck drivers, restaurant workers, people who lost their job, people in temporary unemployment and in need of retraining.

I understand that the problem feels intractable, but it's because we treat the people make it so like something that simply is. It is not a thing that simply is, it is a moral choice made my hundreds of thousands of people over and over again and it is their failure.

Morality is a spook. There are no "moral costs".