That's the current state of game industry in a nutshell. A sad sight honestly.
Doesn't matter how much you hate the series, or if you play it or not. If you buy it, they get the money anyway, and that's the only thing they care for. Not only that, but your purchase gets carefully counted towards the total amount of copies sold, so on the next CEO meeting, they could show them beatiful sales graphs etc.
There's only one way you can stop this conveyor of bland mediocrity (I'm use very, very mild words right here), and it is - to vote with your money. If you'd actually hated these games like you claim, you simply wouldn't buy them.