Pick your favorite place on the planet. Then tell me if 8 billion people can live there, and would it be the same place if they did?
I know the answer to both of these questions, and so do you.
I know the answer to both of these questions, and so do you.
But the thing is, just like elsewhere, much fewer people actually want to live out in the suburbs, which is reflected in the price. Because getting to Paris proper sucks if you don't have a direct rail connection (which most of the outer 'burbs don't), and even then, you're likely to waste hours commuting, between the unreliable service and just sheer distance. Things are improving for "mid-distance" suburbs, but we're not quite there yet.
Anyway, as far what happens when you make renting impossible (or just de facto not financially realistic), in Amsterdam it led to a lot of rentals being sold. The people buying had roughly 2x the income of those renting, on average. So, I guess that's a good thing, if your goal is to evict lower income renters so people can buy a place more cheaply. https://www.youtube.com/watch?v=t05cFv02pzY discusses this at length.