I think it's the opposite. Sure in short term hobbyists are getting squeezed, but the amount of capital that they can put into pushing the edge is small compared to Fortune 500. Sooner or later hobbyists will benefit, especially if the market crashes.
It's impossible to kill gaming like this. Even if hardware was completely unaffordable, people would just use old stuff for longer and then upgrade after prices restore.
Why would it kill PC? There will always be hobbyists, e.g. I can't imagine pro e-sports players running on a Mac. Personally, half of the reason I moved away from Windows is Microsoft stalling/degrading Windows experience.
Price of PCs causing a collapse in demand, then mass bankruptcies of companies making PC components so supply chains get demolished and when prices come back down there’s no one left selling anything so you can’t build a pc at any price