I'd like to see the numbers, and how they compare to those of the Cubans.
1. 100% of all Cubans who make it to United States soil are granted political asylum. That's what the law says.
2. In 2005, Chinese nationals filed 7540 asylum requests of which only 1442 were granted, according to the United States Department of Justice. However even those numbers are highly misleading. Large numbers of Chinese illegal immigrants don't bother to file for asylum because they know the odds of receiving it are slim. So that 7540 really only reflects the strongest subset of cases, largely from people who can prove that they are political opponents of the Communist regime.
It's abundantly clear that if you're suffering under one Communist dictatorship, you get free access to the United States. But if you're suffering under other Communist dictatorships, the US won't have anything to do with you.