That's a blanket statement with no basis in fact. There is a lengthy review process for asylum seekers. I agree, however, that the process is not followed as blanket policy on a boat in the middle of the refugee situation. There are ways, though, where it has worked, even for these folks. Those who get word out through their loved ones ahead of time to prepare the authorities have been able to get past the boat review.
I don't live in Miami and I don't have any specific examples, I just recall reading stories of these situations over the years in the news.
Patently false.
You are making it up as you go along.
Present proof that the US Coast Guard calls relatives in the US to confirm whether a refugee will suffer persecution in Cuba while the INS officials are conducting a 5-minute interview in the middle of the ocean.