I don't debate leftists. They are four years old emotionally, operate on those emotions, and are immune to reason. Because of this, I only insult them. It's more fun pushing their buttons and watching them explode.
To use the Manosphere term, "frame," I never let them maintain it. I never answer them, just change the frame by insult. I am never serious when I do it, because I never take them seriously. I always smile.
I used to try to have conservations with them, but I quit after, say, the first time. I remember making the comment, "I find it unfortunate that blacks commit so many crimes, and I don't know why they do it." The woman (whom, it turned out, was a completely idiotic - and unattractive - leftist studying political science and hoping to be a college professor, responded, "I suppose you support apartheid in South Africa?" I told her that was a non-sequitur, but to the leftist mind, there is no such thing as a non-sequitur, just "I'm good and anyone who disagrees with me is evil."
I have memorized a few of these insults.
"You know why I don't take leftists seriously and don't debate them? Because talking to a leftist is like playing chess with a chicken. No matter how good you are, the chicken will knock the pieces over, crap all over the board, then strut around squawking like it's won."
"You know what's black on top and white on the bottom? Rape."
"Every time leftists open their mouths they subtract from the sum of human knowledge."
"Watching a leftist trying to make sense is like watching a monkey try to fuck a football."
These are best said on the way out the door, so they don't have time to think of some comeback, which is usually along the lines of shrieking "racist" or "Nazi" after you.