Sure but the European Championships is a higher level than the Copa and it is played a lot less regularly. There has been 4 Copa tournaments in the past 6 years?! There has been 16 editions of the European Championships which is one less than the number of Copa tournaments that Argentina have won, although the Copa goes back a lot longer. There are 12 European sides in the FIFA top 20 rankings whilst only 5 from South America. That's generous to South America too given the way these things are calculated.
Dude, UEFA has 54 teams affiliated, they will have more competitive teams eventually.
Don't be confused, I DO consider UEFA a superior confederation than Conmebol (if we don't count the amateur sides like Gibraltar,San Marino, and such).
Why? Because i would take peak Poland(1974-1982),peak Bulgaria(1994), peak Romania (1994), peak Sweden(1958-1994),peak Portugal(1966-2006),peak Checoslovakia,peak USSR, peak Yugoslavia,peak Croatia,etc over non-big south american teams cause the prime of these have been lower than the european teams i mentioned.
I DO think Euro is better than Copa America.
But let's be real the current version of Euro with 24 teams isn't much better, the past editions with 8-16 teams of course completely superior, it's a no brainer.
However winning trophies is hard, Maradona didnt win a single Copa America either, didn't even reach the final, and he is considered ultimate GOAT.
As matter of fact, aside from WC, his trophy cabinet is kinda poor, and he is considered better than legendary players with a fuller trophy cabinet like Van Basten,Platini,Zico,Best,Bobby Charlton,Zidane,Di Estefano,Puskas,etc
France lost an Euro final against at home to a Portugal side that didn't have Cristiano and barely got eliminated in group stage for not beating Iceland,Hungary, and Austria.
Portugal with a great team lost an Euro final against a very poor greek side who shouldn't even have been in the final, as Greexe got lucky with czech players missing sitters the whole game and Nedved injury in the semis.
Winning trophies with national teams is hard, it will always be, this is why I'm not surprised Messi has only won 1 Copa.