Depending on how a game is made, no, ray casting may not be “easily toggleable”
You wouldn’t complain about games requiring DirectX 12, or requiring DirectX 11, 10, whatever, in the past, so why complain about ray tracing? Modern games require modern GPU features, that is nothing new.
In fact, there are already abliterated models of deepseek out there. I got a distilled version of one running on my local machine, and it talks about tiananmen square just fine