Are Puerto Ricans well educated and highly skilled? How will the admission of a bunch of Puerto Ricans to the Union help the US? Puerto Rico should be an independent country.
Did you even read the links?
Peurto Rico is already United States territory, and Peurto Ricans have been US citizens since 1917. Say what you will, none of this is new, their financial and legal ties to the US have existed longer than you've been alive, and they've voted to simply make it official.