The complaints I saw when it was released, and ever since (with the exception of the promptly-fixed save file problem), were all very minor ones. Yet a big dramatic deal was made of them. One video went on and on crying that there weren't enough airborne vehicles flying around in the background as though they were promised some specific decorative amount.
I'm not sure what "facts" you see when you play, or why you personally consider the game to be in a shit state, but I doubt it's serious enough to warrant a refund campaign and an organized attempt to collapse their business. I could be wrong about your personal experience (maybe you DO have some good reason to be angry), but every such complaint I've seen so far was a tiny one that was treated as though it were a large one.
I play on a PS4. I've read everywhere that it's supposedly unplayable on that, but I've had no more crashes or problems than any other large game I've played. The graphics are fine, too. I'm on my 4th playthrough.
No refund. No regrets.