There's a lot of talk about urban gentrification. I think the primary focus is on involuntary displacement - with rents and increasing property taxes driving out long term residents. The latter is somewhat less of an issue, as higher property taxes mostly accompany higher property prices. It sucks if people are forced to move, but at least there's a payout.
Still, to me, the real issue, especially in my urban hellhole where it has been a slow process and evidence of involuntary displacement is limited (it could be more real than I know, but even anecdotal evidence seems to be missing), is what came before. It shouldn't take wealthy white people moving in for equitable public services - including schools and proper policing of the protect and serve variety - to show up in neighborhoods. But that's what happens. The focus shouldn't so much be on the gentrified neighborhoods, but the non-gentrified ones.