If a european moved to PR, what would the tax situation look like?
I'd be more worried about hurricane shelters than tax shelters in Puerto Rico. On the plus side, you probably won't run out of paper towels anytime soon.
No, Trump took all the paper towels back with him on AF1. Just a photo-op.

Don't ANYONE approach the Orange Cheeto about Bitcoin. He'll flip, he'll flop, he'll create total chaos. Keep him focused on the stock market, FFS.