> “strawman” (argue against your opponent’s weakest point).

That's not what a strawman is -- if it was, it wouldn't be considered an informal logical/argumentative fallacy.

A strawman means taking your opponent's position to a new extreme, turning it into a caricature of itself. E.g. if they argue for lower taxes, the strawman version could be acting as if they want no taxes whatsoever. It's bad form because it's not something they actually said, or implied; and realistically, the extreme form of almost any position is bad.