I think we should first of all aim to balance the different inputs, instead of splitting the player-base. There are many players using controller on PC. This will be a problem for PC players regardless of cross-play.
I personally will for the most part play with friends using different inputs. If the aim assist is as bad as you describe here then I think that needs to be addressed.
There should be no rotational or snapping assist in BF6 as far as I know. Only aim-assist slow-down effect while aiming at the target, making the aim a bit more "sticky". Sounds like this effect should be reduced slightly. More importantly the recoil should be the same for all inputs. During the beta the recoil was noticeably less while playing with a controller. This is in my opinion very bad for the game. It makes the weapons feel different, and it allows controller players to build the weapons differently as they are not that dependent on attachments for reducing recoil.
We can still have the option to turn off/on cross-play, but the inputs still needs to be properly balanced. I really hope this does not become another game that heavily favors controller players (as it does in CoD).
More importantly the recoil should be the same for all inputs.
The Problem: If let the Trigger, it is not fast enough to Position like MnK.
Burst Fire with Controller is a Problem because of the Controller.
Controller isn't a Mouse Klick or Keyboard Key. It is a Trigger.
The Problem: PC Player search for they Skill Cap the Problem in Controller, AIM Assist and so far on.
My Stupid Stick has more than one Function, same for all Buttons. The Controller has downsides more as PC Player Imagine.
I don't doubt controller is harder to use in a shooter than MnK.
The issue really is though that EVERYONE in cross-play suffers worse netcode and EVERYONE who chooses to turn cross-play off suffers from long queues and bot-filled games because EA/DICE heavily favour filling cross-play lobbies.
Also, yes, it's awful that PC players don't even have the option.
There are legit reasons for all players whether PC, console, controller or mouse to turn off cross-play, but EA/DICE want to push their match-making system even if it makes the experience worse for players.
You choose to play with a controller, it's your preference. Why are you making a bunch of excuses for it?
What a strange mentality it is to make excuses for your input of choice, then demand it gets assistance to overcome those. Where else in life does that apply?
I'd like to play golf with a hockey stick. Therefore I should get the amount of assistance needed that makes me competitive. So that I may get the same par, or better, as others. I think that's fair that I get special accommodations rather than use the better tool.
