I don't think he hates america, his comments about it show that he seems to strongly support and love america. But that said, he does want to have the absolute best employees possible. The issue is, Elon is autistic, so groups that are far more prone to lying, such as Indians and even more dangerously, the Chinese, are able to appear as if they are the most skilled in their fields. In the Indian's case, most of it is just pure lies and nonsense. In the Chinese case, they very well might be, but their lies come in the form of security issues where they will steal anything that isn't bolted down in order to get ahead.