Ronaldo wasn't in his comfort zone is prettty
You clearly haven't if you keep harping on about how poor Ronaldo got booed by United and Madrid fans and that means Ronaldo wasn't in his comfort zone
Messi didn't because he was simply better. As Xavi said, if Messi struggled he would have been booed.
Just because you say that Messi was in his comfort zone in Argentina, it doesn't make it true. He was booed by Argentina fans (funny how that doesn't work in your favor now). He wasnt considered one of their own.