It's almost a tautology that only long term residents are around long enough to feel the negative effects of gentrification directly. I've been in my home for 15 years and only in the last 5 or so have I come to really understand what this trend has done to the community.
My initial response to the current wave of millionaire neighbors is to resent the gentrifiers with all that wealth who don't see what they're doing. But a quick look in the mirror confirms the awful truth... I was just like them when I moved here 15 years ago.
Sure I wasn't as rich as the current crop, but the exact degree of wealth surely would not have been terribly meaningful to the lifelong renter residents who were slowly being displaced by middle class people looking for a bargain on a home at that time.
The system we have created around real estate and home ownership is optimized to erode culture and atomize community. We like to pretend that this is somehow inevitable, the will of the market, but we need to own it - this is the world we have built for ourselves.
So yeah, I do understand the anger at individuals - because there's nothing else to be angry at. It feels like being angry at the system itself is futile.