Cowbee is one of the few accounts I've blocked not for their backwards views but for being an absolute terrible person to talk to. I made the mistake of trying to take them seriously and have a discussion, and I received a barrage of guilt trips, insults, and recommendations to "inform" myself by linking to chinese government propaganda. I was called a liberal, a fascist asset, a homophobe (in my first comment I made a joke about sucking Mao's dick, which Cowbee took as confirmation that I am a fascist liberal).
On each of my comments they replied with two or more comments twice as long and then they got pissed I didn't read them all and respond to their arguments (as if there were any).
Honestly I don't think your strategy of posting smug gotchas will work any better. just block that asshat.