Posters are a mix of those that feel everyone should be able to own a single family home with a backyard and a neighborhood feel, or environmentalists at best, or simply greedy homeowners at worst, who want to save the green belt. Carpathica appears to be an environmentalist.

But, we cannot have it both ways, unless we get high speed trains and a new ring of suburbs further afield, but that idea has its own set of crusaders too.

Lots of people live here.  Many are well off enough to own houses .  The average income is sort of irrelevant because almost 10 million live in the region and only a fraction single family homeowners.

Gee is simply pointing out that there are instances where unfettered access creates good outcomes.  Sometimes less is more.  He says nothing about the green belt as a free-for-all.