I don't see any actual evidence cited that entrepreneurs or "creatives" in particular are fleeing France. They might make up a larger percentage of the diaspora

I don't see any actual evidence cited that entrepreneurs or "creatives" in particular are fleeing France. They might make up a larger percentage of the diaspora, but that's generally true of expatriates from any country. France has about the same percentage of citizens living abroad as the US, and about a quarter as many as the UK: France: total population ~63m, living abroad ~2m, about 2.5% US: total population ~317m, living abroad ~6m, about 1.9% UK: total population ~63m, living abroad ~6-12m, about 9.5% or more