Comment by dontlaugh

All major consoles support keyboard & mouse or similar.

The problem is more the audience. Console players generally expect to be able to just connect the console to the TV, sit on the sofa and play with the official controller. That’s all the game are required to support to be published on the platform.

Even if you were willing to play at a desk, you’d be matchmaking into a special (and small) mouse pool on the console game. Anyone willing to go through so much faff will accept the extra annoyances of a PC, even with kernel anti cheat.