The Pirate Party (PP) and the Pirate Bay (TPB) are different entities. TPB was (at the time TFA refers to) a privately run torrent tracker and search engine, with servers in Sweden. PP is political party. I assume the letters you are referring to is the correspondence published on TPB. Most of that is to lawyers, not creators. But I don't suppose that makes a difference to you.
I'm not clear what it is exactly you're advocating. Do you support the interventionist policies of the US government? For something as trivial as intellectual property, no less. And in a well-functioning, friendly country (we're not talking about Sudan here). That's a pretty extreme point of view. I don't suppose you have a problem with foreign governments pressing US DA's to prosecute this or that? Or perhaps China or the EU having an opinion of which political party they like better, the Republicans or the Democrats? Or are you just hypocritical?
Oh, and equating IP infringement to stealing is a tired line and no one but you is buying it. Either you must be new here or you actually work for the RIAA/MPAA. Sharing is caring.