If those are the kids in a specific school/school system that happen to be the most academically gifted, then they should be the ones attending the gifted and talented programs. I don't see how them attending precludes anyone else from also qualifying though? That the demographics happen to skew this way in some number of school districts is interesting at best. Rewarding strong parenting sounds like a win for society to me. Second generation immigrant children doing better than their first generation parents sounds like the American Dream working as-intended to me!
> you’d consider “moving society forward”
I likely have a much looser definition than you do, perhaps. This can simply mean being a functional member of society that participates within their community. Making the jump from poor to middle class is a huge generational achievement on it's own. If I was tossed into the "general classes" in middle school I likely would have simply been working in a factory or retail like most of my peers who stayed within that track ended up doing. The folks in the accelerated programs statistically have gone into more lucrative careers - even those who did not attend college.
It all comes down to helping those who want to help themselves, and recognizing you can't help those that don't want it. Spend the resources on the former, and give the latter the opportunity to change their ways - but don't tear down those trying to better themselves in the name of equity.