Because this “high density housing” is code for commie block slave quarters.
There are places, and I know this is hard for you city dwellers (which translates to “bourgeois” in French FYI) to understand, where there is still nature, there are still forests, the houses are a miniscule proportion of the land area. Its like that basically everywhere else except for where you insist on living and think everyone should live. It’s really pretty, but the downside is that you cannot get by with a busywork job sitting at a desk doing nothing productive all day. I know that’s a deal breaker for most of you. Some of us have the life you wish you were living, or something close to it, no expecting the whole world to bend over backwards to accommodate you required.