While I understand your position, I think if the devs see a growing share of userbase running their games on Linux despite proton, they might feel compelled to put extra effort in at least a better experience with proton (first) and then possibly later a native port.

I'm guessing this is how little by little we get devs to consider native ports. They need to see the demand for it before committing. If nobody ever even tries to run their games on Linux even with proton somewhat working, they'll never be able to gage the interest and need.

At least that's how I view it and plan on weighing in and nudging the devs.