While the World Cup is nice to Have on a Resume but IMO it shouldn't be one of those "Well if Messi never won it, that means he shouldn't be Considered a GOAT" when someone Thinks that it feels like a Last Ditch Effort on trying to Deny What Impact Messi has had on the Game.
It's about as bad as some of the EPL Fanboys that are like "LOL CR7 IS BETTER THAN MESSI CAUSE CR7, PLAYED IN THE EPL AND NOT THAT WEAK ASS LA LIGA!"
Players like Di Stefano,and Cruyff Etc are Considered to be some of the all team Greatest players to ever play the game, but They don't have any World cups to their name Should that Diminish The Impact they had when they played?
Messi is the GOAT in my mind for what he has done since he has started his Barcelona Career and many people that Will Agree even Legends of the game will tell you Messi is the Best in the world and easily the GOAT.