This is so frustrating

The commenter was building on top of your argument

You said prohibition wasnt healthy

They said total absence of control wasnt healthy

They implicitly agreed with you that prohibition wasnt healthy

I then spell it out for you that the message being built, that almost certainly you also agree with, is that moderation is the answer.

A counterpoint turns a random point into a line, a line into a polygon, a polygon into a solid, etc.

That counterpoint gave your message an extra and important dimmension. They thought your message was correct but lacking neccisary nuance.

For some reason you got peeved with that, and i think that looks poorly on you, not anyone else.