Your point is well taken, but P.R. ranks 19th among the 50 states, D.C. and P.R. in net Federal expenditures per capita (expenditures minus taxes), so it isn't as though Puerto Ricans are "takers" (at least not the worst "takers"). (Citation below.)

Perhaps Puerto Ricans should pay personal income tax, but then perhaps P.R. should have voting members in the House and Senate and Puerto Ricans should be able to vote for President (the pesky "no taxation without representation" thing).

Now isn't the time to discuss tax policy, it's the time to help fellow Americans who are suffering.

I'll leave out the snark.

(From Senate Finance Cmte website, FY2010. P.R. also ranked
19th in FY2004 with 16 of the 18 entries above P.R. staying the
same, which suggests the list is fairly static.)