"It's a left-wing myth, one that they created to shoot down."

Most people know that this term is "straw man", and if they don't know it they certainly deserve to hear you use the term so they will have to look it up and learn it. You should use terms like this whenever it's appropriate.

I'm reminded of the time the RNC was going to criticize the "Luddite Left" and ended up taking out the term, lest someone not understand it.

Sigh.