It doesn't hurt the sales of the games, that's an unscientific assertion you are asserting that directly contradicts research.

If you want to play it for free, nobody's stopping you from pirating it too. It seems like resentment here rather than logical rigour in your argument. It's not a slap in the face for gamers who want to support the developers. If you don't, there's no reason why you should be obligated to purchase the game.

Games are made and developed for-profit, they only continue production if they are profitable. They've remained profitable despite piracy forever.

This has nothing to do with the argument that all games should be free or that developers don't need paychecks. It's an entirely different set of claims which nobody is making here.