I think it IS time for them to decide. Do you realize that with their current status, they get nearly all of the benefits that a US citizen does, while no one there pays a single tax $ to off set it?
As for their political leanings, not sure which way they go. I would almost have to think that it is more conservative than we imagine. Else, the Democrats would be doing everything in their power to get the statehood done for the new "dependent" voting base.