They outgrew the french league ? Hahaha, best joke of the day !Those players out grew the french league and have done very well here but it is still not a competitive league to play in,Neymar has proved himself abroad so he has nothing to prove in france.What has Kylian achieved that they haven't? the world cup? he hasn't slogged for 10 months in a league where several teams can win it,the players you mention have acheved a whole lot more than this kid has so i don't agree with you there,he is potential right now that's all i see and until he challenges himself we won't know what he'll become
Kanté was playing at Caen, which is quite a very small club, in a very very average team. He was just considered a prospect (and even not a big prospect or he wouldn't have gone to Leicester).
Mahrez was literally playing in Ligue 2, but you are telling me he outgrew the Ligue 1 ?
Hazard, yes. You can say he had already achieved everything being best player in Ligue 1 and winning the championship.
Mbappé has won 3 straight leagues with 2 different clubs, 2 or 3 times best teenagers, 1 time best player (because Neymar was injured for too long), 1 time best scorer. But for you, he has not proven more than those players who have instantly been the very best players in England.