> Something else to note is also employment laws, which are way more strict in France and makes it either extremely expansive or just impossible to fire someone, the cost of hiring seems to be way too high for startups, which are business why high risks already.
No it's not, first there's the trial period for permanent employees where you can fire at will and then once it's over, you can still do it but you need to motivate your decision & respect the process.