Saying “we’re not a democracy, we’re a republic” in response to people claiming the Electoral College and Senate aren’t democratic is not going to work because by saying that you fundamentally misunderstand what these people are actually trying to get at.
You have to realize that these people know the United States are not a democracy, but they want the United States to become a direct democracy. The only way to maybe get through to them is to explain the merits of the republican system our Founders created over the Athenian-style direct democracy they want.
My go-to is “people from Wyoming really are just better”
Or just get a Monarch.
“The people want a direct democracy”
“Have you tried the almost precise opposite of that?”
America fought a war not to have a monarch, my dude; why would we want one now?
Off the top of your head, without looking it up, name five Disney Princesses.