The primary political split in Puerto Rico is not between the independentistas, who are negligible, but between those that want statehood and those that want to continue as a territory.
The ones that want to remain a territory are looking for a kind of autonomy, under the US flag, that most states would have if the 9th and 10th ammendments were honored. As I said, independence is no more an issue there than it is in Texas. People talk about it over a beer, because its fun to rail against Washington. But the real Texas independence crowd is a handful of nutjobs that no one listens to.
In Puerto Rico, its college professors and students, who as I say have no intention of giving up their own citizenship. They may try and talk you out of yours, but they tell people that it will be possible to be independent and retain US citizenship. Which means, obviously, they are not serious people. Its a thirty minute flight to Santo Domingo; most Puerto Ricans know what life is like out from under the US flag. They appreciate it more than, say, your average mainland school teacher.
It's divided up into 3 sub-factions.
The Independence Party thinks it can continue to extort everything PR's already receiving from the United States and have fun making havock out of international politics.
The Commonweath Party believes that theirs is the best way for Puerto Rico to extort more dollars from the U.S. Taxpayers.
The Statehood Party knows they'll be able too vote themselves even more U.S. Taxpayer's dollars when they send 2 Liberal Senators and 4 to 6 Liberal Representatives to Congress.
All 3 Parties want something for nothing.
No conservative would be for what the residents of Puerto Rico want.