I agree being super-critical and also self-conscious can be disabling, not to mention taking away pleasure in the work itself, which really is a shame, isn't it?
Discussion about an issue is one thing, but as for forcing views on someone else, my reaction in short is: screw that.
I particularly dislike being preached at instead of spoken to as a person, you know? I've seen that quite a bit, frequently cloaked in some weird sort of righteousness.