Most arguments arise out of a basic misunderstanding. I declare the sky is blue; you argue it's gray, and we realize we're not in the same city.
In one of my recent YouTube videos, I made a statement that it is not possible to have a true high-end audio system and proper home theater in the same room using the same equipment. Countless viewers have argued the opposite.
I think the misunderstanding lies in what it means to have either system. For example, when I refer to a home theater system, I see in my mind a big screen fed by a projector with the main LCR either behind the screen (preferable) or discretely hidden below and to the sides.
This arrangement can never result in a true high-end 2-channel audio system. The mere fact that the speakers have been set up to optimize the LCR format means that by default, they won't image properly when you play a CD.
Turn it around and take PS Audio's Listening Lab 2-channel wonder as the basis for a theater. It's true we wouldn't lose much if there was a big screen LCD or OLED discretely mounted to the front wall, but this does not make a proper home theater. What you wind up with is a great 2-channel system with a video screen in the middle.
It's all a matter of degree.
