No.
That’s like saying Trump fans are right since they are more fierce and refuse to entertain that they might be wrong.
No, it's not. Trump voters are more fierce because Trump naturally attracts fierce people unwilling to admit they're wrong. They vote for him because they are more fierce, not the other way round. Unless you want to suggest that Messi attracts the same kind of people with his football, your argument don't make sense. There's no reason to estimate that the group that supports Messi consists of different political and demographic clusters than Cristiano's since they both attract people across all nations and societal segments.