In this case, the minimum patch to fix his situation (and that of those very similar to him) is probably to remove the 10 year ban requirement. Let him leave, reapply immediately as an O-1, etc., without prejudice, based on having come here as a minor, and/or having graduated from a US university. While I'd like to see comprehensive immigration reform, I am always afraid of the perfect being the enemy of the good. Th…
I've heard of quite a few speakers and musicians that were technically banned, Nelson Mandela comes to mind, but had so much overwhelming support from businesses and congress that ICE had no option but to overturn it. He's got a Pulitzer and a few bestselling books, I'm sure he can spin that into a proper visa.