If you find yourself responding with tu quoque, then it is probably about time you re-evaluated the hypothesis that you are in mind-kill territory.

In this particular context, I think a more appropriate label would be the "Appeal to Come on, gimme a friggen' break!"

The comment he was responding to was quite loaded with connotation, voluntarily or not, despite the "mostly true" and "arguably within the realm of likely possibilities" denotations that would make the assertion technically valid.

Being compared, even as a metaphorical hypothesis, to sophistry-flinging rhetoric-centric politicians is just about the most mind-killer-loaded subtext assault you could throw at someone.