And would have been even more succesful without piracy. Your perceived "rights" does not mean people should be allowed to pirate more easily.
You have no way to know if it would have been more or less successful without piracy.
No, it doesn't. You're just being selfish. If you don't like the risk that comes with a lack of a real account system, buy physical. If you don't like region locking that much, vote with your wallet and buy something from the competition. Advocating piracy has the potential to hurt the ecosystem. Just look how it has damaged Android. It probably won't be anywhere near that bad and the ecosystem will likely still remain healthy, but rampant piracy could hinder it from being even more successful.
Or I'll do with my media what I please once I've purchased it, and if that means throwing multiple games on one flash cart, I'm going to do so.