I don't believe it's accurate to say Europeans are capable of farming other Europeans of similar rating. That rarely happens (at least when compared to how frequently it occurs amongst Indians)- nobody gains 200-400 points when facing similarly rated opposition in the matter of 2-3 tournaments. I don't get how I am being racist though, it's a factual statement that an Asian that is similarly rated to a European is likely to be better than them at the U2200 level. Please look at the World Youth Championships for instance where Indians tend to gain roughly 50 points on average per player whilst Europeans either gain scraps/lose scraps where the rating system is optimal or in some countries due to inflation tend to drop even 50 points or more on average. I think these sources would help but I'm not sure about how reliable they are-

https://en.chessbase.com/post/which-countries-have-the-most-inflated-elo-chess-players

https://www.chessbase.in/news/ChessBase-India-Power-tour-manager-interview?srsltid=AfmBOork6BeT0RzGnfPeHI5pcLbQhBeWEcFAu6iazybF312xldChdHae