Irrelevant how. People are de facto revolting against the current Western gaming companies by playing gambling simulators in China, rip-off MMOs and shooters in South Korea, and the good Japanese single-player story games.
No, they are not. People mix and match since forever, try what looks like they like it and continue what they perceive as fun.
People in the West played Asian rip-off MMOs as you call them 20 years ago already. But those just hadn't the appeal of WOW. They also played Japanese single player story games (when someone bothered to translate), FFVII was huge in the West, the Zeldas, Horizon, Near Automata... all popular even in the West.
Admittedly they didn't play Asian Gacha games all that much (aside maybe the Fate game that could build on a beloved Anime franchise). But then Genshin impact is the first real high quality Gacha game for PC and western people play it because they like it.
None of that has anything to do with reactions to "Western gaming" and all with how appealing the non-western games are.
And no, people don't abandon Western games either. What was the last GotY ? BG3, a Western title. Yes, Starfield was a disappointment, but still widely sold. Hogwarts was a huge sucess. And on the multiplayer side, Fortnite is going strong as ever, despite coming in the years. No one is abandoning Western gaming.
Sure, there are developers and publishers is trouble. But there have always been developers and buplishers in trouble and there have always been genres in decline or on the rise.
But honestly, players really don't care whether a game is western or not. Most also don't care about the publishers or developers reputation.
That one life service game after the other flops, is not a "Western gaming crisis", it is a life service crisis born from stubbornly chasing an audience that does not exist. And there are enough Eastern failures in this category as well.
Gamers also generally don't fight stupid culture wars. Nor does the industry, really.