Makes sense. When you're paid well and you can raise your own salary every 2-3 years, why would you want a union? You're doing fine on your own. Sure, some shitty markets like right now happen, but you negotiated your way into years of savings to tap into as you need. You can weather the storm.
But yes, I'm in gamedev and this was a forgone conclusion for studios making record profits but laying off very talented people. If your ace isn't safe, the rest of us jokers need to band together to survive. These same FAANGs seem to forgotten why they paid their other tech so well, and they are sowing what they reap.