Jimjamesak
Already insane, UAA making it worse
Coaching as well, Didier Deschamps has done an amazing job to put it all together. You can have a bunch of talent but if there's no one there to help put it together it blow up pretty quickly (like what happened to France in 2002 or 2010).MAGA/Reform UK/Nazis won't like it, but where they get players for the national team plays a part.
Birthright citizenship (which we still have and France has had) is why the USMNT striker is going to start tomorrow instead of watching Kane from the bench (assuming he even makes the roster). It's also why so many of their stars have surnames that don't exactly sound French...
Having a generational talent like Mbappe doesn't hurt either.