That would literally, completely, and honestly make you stop playing games and leave this industry behind.
For me it would be if EA bought Rockstar. They actually tried a couple years ago to no avail thankfully and fortunately. I can honestly say I would be devastated and sick to my stomach.
It would take a lot for me. There's not really anything stupid enough that a developer could do to make me stop playing games, not a rationally stupid thing anyways, sure, Obsidian could make a My Little Pony RPG, but they never would.
The one event that would make me stop is if every video game just disappeared forever.