Either I don’t know what I am talking about or you are misinformed and not up to date.
The truth is teams used to struggle a lot in Bolivia, yes. Times have changed, and so has human performance and physical conditioning. Players literally use some form of oxygen mask before games and during half time when playing in altitude in La Paz and guess what the result is?? Teams struggling less and less against Bolivia.
Case in point, Brazil beat them 4-0 in Bolivia.
However, I obviously have no idea what I am talking about as you are alluding to. Now, if you take away Bolivia’s advantage, name me one notable player that you can think of that plays for them?
Case in point, the level of opposition bar Argentina in the South American qualifiers are crap. Even the Brazilian commentators say so.
Is it a coincidence that Brazil hasn’t beaten a European team in the WC in the knockout phases since 2002?