>>>> doesn't care to see your piercings and tattoos in the grocery store.

>>Harold can fuck right off then because that's not his business.

Don't come to Japan then. [1][2] Like it or not, some cultures (including the older generation of Americans) hold certain social mores that include expectations of public appearance and decorum.

[1]https://www.japantimes.co.jp/news/2018/12/19/national/stigma...

[2]https://observers.france24.com/en/20170504-japanese-authorit...

Harold has freedom of movement, just as you and I do. If Harold can afford to live in a neighbourhood where tattoos and piercings guy can’t, who are we to stop him?

The real problem with gentrification is the unearned increase in property values that accrue to owners and not renters. This could be solved with Georgist land value taxes [1].

[1] https://en.wikipedia.org/wiki/Land_value_tax

I spent a lot of time in Italy, and there, rather than SFH for 'good' people here, and rent-only apartments for 'bad' people there, you have a lot more 4/6/8/10 unit buildings where you own the single unit and can either live in it or rent it out. So things are a lot more mixed. I think this leads to more integration and better outcomes.

The house I live in currently is exactly this. It's a block of townhouses (20ish total), grouped in sets of 4, where each person owns their individual unit. We have a pretty diverse mix of people, and I quite like it.