idk why people are hating on you for asking a question
i dont have the statistics but its probably just because more east asians typically play valorant both men and women
so if more east asians are playing, more likely someone is to be with them. so it has nothing to do with the race, just player pool and more likelyhood of encountering someone who is east asian, like if you moved to another country, you are more likely to be with someone from there
and if you want to know why more east asians play its probably because of money and class