Coming from playing FPS on PC, it was a difficult transition for me. I used to be quite competitive in Duke Nukem 3D (aiming with keyboard, that was fun lol) in Lan setup before mouse aiming came along. It was far easier to get good with mouse aiming than later with controller. Unreal Tournament and HL Death match were my bread and butter.
I mean, anyone who's a little "older" (haha, oh gawd now we're BOTH old fogeys!) is going to have learned FPS games on PC. It was the genre that was primarily PC-only due to, as we're discussing, the control methods. That was until they started refining aim assist to give controllers more "comfort".
And while I can respect and understand not being into PvP as much anymore, I will say that I can understand the "thrill" it provides that other games do not.
Buuuut, your comparison of PvP racing and PvP FPS is apples and oranges. As a person who plays sim racers with a steering wheel, there's a LOT to unwrap with making this comparison that makes it just far too different. Steering wheel setups don't just alter the input method and precision, they change the required physical interaction level. A controller and KBM still match in button presses and overall effort: but if you ever play a proper sim racer with a steering wheel and take the long Nurburgring Nordschleife route, you may realize just how tired your arms can get. I've worked up a sweat, in fact, taking a Bugatti Veyron around the Nordschleife, and it STILL took me 8+ minutes lmfao... Of course, I'm talking proper steering wheel setups with accurate force feedback which means you're fighting the wheel and trying to "feel" your way through as corner. I've played on someone who had the steering setup at THE MOST USELESS settings with no force feedback! All they did was turn the wheel and push the pedals, so keep in mind even steering wheel setups vary. I like mine realistic for... realistic reasons lol