Old Guy: Why do you say "What I (allegedly) want is of no importance here"

Because I didn't bring it up, and because it is presumptuous of you to claim to speak for what I am thinking. Because it is the logical fallacy of argumentum ad hominem. And lastly, and most importantly, because of the reasons that I detailed in the post from which you culled this snippet from, and of which you seem to have ignored the rest.

Is that clear?

Cheers,