Gated communities seem to me to be a good idea. The only problem with them is that they are currently self-selecting.
You know who the arseholes are: people who talk loudly in the pub; drivers of Mega-SUVs; people festooned in designer gear.
Mercifully, many of these are already safely behind bars in their gated communities, but the problem is: How do you get the others in there?
Maybe there has to be a voting system, run on a local level, where a number of places in gated communities have to be reserved for non-self-selection entrants each year.
Then we all propose names of people to take up those places.
Finally, from the list of proposed names, a selection is made on the number of votes cast for each person. It's a kind of reverse of the blackball procedure for joining a club.
This would be an enormous social advance rivalling those implemented by the great Sir William Beveridge himself.