Of course, we could do a simple experiment of taking Asian kids away from their parents and swapping them with non-Asian children. The Asian kids would be raised by non-Asian parents and vice versa.
It will never happen, but I don't think the results would be to their, libs, liking. Just like they don't like the book by Nicholas Wade, science writer for the N.Y Times, called "A Troublesome Inheritance" where he pretty much proves inherited intelligence.
Whites outperforming Asians happens all the time.