The socialists who control the city have a majority but not a structural one (Paris was voting conservative for a long time). The gentrification of Paris would

The socialists who control the city have a majority but not a structural one (Paris was voting conservative for a long time). The gentrification of Paris would normally deplete their electorate, so you can see their efforts to buy prime real estate at high price to convert it to social housing as a very expensive vote-buying exercise.