You are both right. My use of the term was in error. I meant to say it was reduced to absurdity while being presented as an inevitable logical conclusion, which

You are both right. My use of the term was in error. I meant to say it was reduced to absurdity while being presented as an inevitable logical conclusion, which is a straw man argument. Without the straw man, reductio ad absurdum alone is just a tool, not a fallacy, as you say.