Don’t bother arguing left-right.... it’s a losing, meaningless name game. Argue freedom loving vs totalitarianism. The National Socialists reared their ugly heads in Germany before, and here they come again. We are infested with International Socialists. And rest assured, as soon as they have consolidated enough power they will become Nationalists. It’s happening all around us and the stench is overwhelming.
The only other tact that I think might work is “conservative to be kind”—disputing the harebrained idea that Leftism is the kind and sensitive thing to do for the less fortunate.
In my experience, if you don’t counter that argument ears aren’t open.