You miss the point. You have a choice to stand in a bar which is fine, but at a football match you are supposed to sit down.
If you took your family to the cinema and some fat bloke stood up in front of you would you be cool with that? I suspect not.
I think his point was that we should, as supporters, be given the choice by having designated areas in which to stand. You have not yet come up with a good reason why people should not stand other than the fact that you prefer sitting in silence.