Flaw 1: You imply that no illegal immigrants are talented, or contribute to U.S. society.
Flaw 2: Your argument presupposes that providing legal status, financial aid and work permits to illegal immigrants will prevent talented people from wanting to work in the U.S.
Flaw 3: Providing work permits, financial aid and legal status to illegal immigrants is done for many reasons, and your argument presupposes that it's a bad thing. You need to demonstrate that this is the case before your argument can have any weight.
Flaw 1: I didn't say no illegal immigrants are talented. Let's say odds for an illegal immigrant to be talented is 50/50, while we know skilled workers like this kid is 100% talented (track record proven so far) -- so why makes it easy for the former group but not the latter?
Flaw 2: If there are slots available, they should be allocated to talented individuals. Evidence has shown many entrepreneurs and college graduates (legitimately) have gone back to their countries because of inability to obtain visas here.
Flaw 3: It's a bad thing. If you compare it to how tough it is for a legal, skilled worker to come here. Besides, I personally know countless people are planning to send their kids here illegally before 15 to benefit from this new regulation. But that's the whole new debate. My only point here is: Why not make it easier for talented individuals instead of illegal immigrants?
Your reasoning isn't much better than "those skilled immigrants are taking our jobs"