He basically insulted everyone in that topic with his stupidity.
But that's just your opinion. You can disagree with him but it's not like he's trolling or anything. He's actually pretty earnest if a bit misguided about the sarcasm in that topic.
It just seems like you're being really petty about everybody who challenges you nowadays, whether that be ideologically or your posting in general. Frankly it's a bit of a nuisance if somebody's constantly getting angry over political disagreements and calling other posters autistic.