Wow, ok. So that kind of idea is really completely new, so it can't be valid?
I think it's pretty easy to go learn the spectrum of DEI.
The world is generally run with gatekeeping, which means withholding access to opportunity to improve one's life to a selected group for a long time.
It's possible that your country may codify gatekeeping and privilege, and the only way they may know how is to do the same thing in the opposite way.
It might not be a good way of holding space for qualified candidates to get to the same table, or even, not allowing an average person to "get a chance" to fail upwards except if you're from one background.
The relevance of DEI shouldn't be held exclusively with its implementation at any given time, as long as it's improving. Kind of like software, maybe.
I'm not sure where your observation is based on - happy to learn and read from any studies though beyond anecdotal differences.
It would be like generalizing that lots of rich kids end up doing nothing as well after their parents pay for their way into and school. Doesn't make it true as a generalization of everyone though.