It turns out people didn't get the joke reference at all. I heard on talk radio afterward from some person who was very familiar with Puerto Rico, who said that the joke reference was to the massive overburden problem that Puerto Rico has with its sanitation dumps. They no longer know where to put the garbage. So, the joke was actually about the Garbage, not about the Puerto Ricans.
It turns out people didn't get the joke reference at all. I heard on talk radio afterward from some person who was very familiar with Puerto Rico, who said that the joke reference was to the massive overburden problem that Puerto Rico has with its sanitation dumps. They no longer know where to put the garbage. So, the joke was actually about the Garbage, not about the Puerto Ricans.