Asian parents for the most part aren't spending money to guarantee their kids entry into schools like this (though some are), the vast majority are just doing a better job of parenting because they don't have any other option if they want their kids to have a better life than what they came from.
I spend a lot of time in Asia so I have come to know many people that have saved up and made the move to Australia or the US in the hopes of giving their kids a better chance in life. They make every sacrifice to this end. Upending their lives, moving away from their social support network (often leaving grandparents behind which is a massive deal for Asian culture). When you understand this it makes much more sense why there is so much pressure on the kids to do well and for the most part they accept that and most come to appreciate it once they are old enough to understand what it cost to get them where they are.
It's easy for a bunch of rich white folk to look at a nerdy Asian kid and think they have an unfair advantage but in reality an entire family worth of resources is likely behind that kid, trying to make them the best they can be.
Maybe instead of being racist dicks we can learn something from Asian culture here, atleast understand the tradeoffs and don't pretend it's not hard work and time that is powering these results.