There are some talking points that will not die: these include

The KKK was founded by Democrats

The Civil War was not about slavery, it was about States’ Rights and Nullification

There would be less crime if everybody owned a gun

Hitler was a progressive Socialist

We could have 100% employment if we abolished the minimum wage

We could end all oil imports if we relaxed drilling restrictions

We cannot argue with people on these points, just try to limit the damage they can do.