Trust me, I know the abilities of South Americans -- which is why I said they're technically better, understand game management more, but physical advantage is always an advantage in football. Even can see it in Premier League.
I'm Southeast Asian so it's no point of discussion I don't get either. Set pieces are at least 20% of the game and I've played a lot of games where you simply can't defend corners if they pack 3 or 4 players over 6 ft when your tallest guy (me) is 5'5 haha.
Well yes you are absolutely right wow you are from Southeast Asia, I have played soccer in real life with people from many countries, but not with the countries there, I would like to play one day with one of them, each country has a different technique in football.
Now, from my own experience and because I have played against the Germans and they are very, very strong, they have a lot of resistance and their height is quite relevant, in the aerial game it is very difficult to beat them, in addition to the fact that they run very fast, it is very similar when you play with the Brazilians, only the Brazilians do a lot of freestyle things playing, they do a lot of feints, it's like a soccer more focused on enjoying, it's like samba, but I know that soccer in any part of the world each country has its technique and that's great.
I was very lucky, most of my life played with only locals but there was about a 4/5 year period when I lived near a university with international students and foreign workers -- but mainly vocational and factory workers, and our pitches were terrible or we played a lot on cement if it was 5v5 -- so very very physical. Africans and South Americans have legs of steel, and a lot of dark arts haha.
Then in my late 20s I played semi-amateur in a city league with expats, then I got a taste of Middle Eastern, European, generally much much taller, better training, but also started playing better pitches, and there the skill levels really widened, but fitness makes up for it a lot (and those guys were white collar mainly so a lot less fit). Our captain and keeper was German actually, I was the only Southeast Asian in the team, also the shortest and smallest haha.
It's definitely a problem when you have to take 3 steps and they only take 2 long strides (so technically, they're slower than you, but move longer distances simply because of height hahaha).