The thing to do when you feel like a commenter is "beyond reason" is to flag the comment. Writing a long response to what you feel is an unreasonable or bad-faith comment is just feeding the toxicity. The abyss is commenting back into you, so to speak.
You can see the effect here: in trying to compose a reply to the parent comment, you managed to violate a variety of HN guidelines yourself.
Ah OK. I didn't realize I was violating guidelines. I'll try flagging in the future.
I thought there was some utility to analyzing the comment because it's characteristic of much of the rhetoric on this topic and it seemed like a good "teachable moment." But point taken.
You can see the effect here: in trying to compose a reply to the parent comment, you managed to violate a variety of HN guidelines yourself.