They will never stop. Despite all the evidence in the world to the contrary, Liberals are still pushing the idea that the NAZIs, the Democratic National Socialist Workers Party (you know, like Sanders and Hillary) were somehow Republicans. Truth be damned. The only thing that matters is the agenda.
Furthermore, Hitler was far from a Christian Conservative. He was a vegetarian socialist, an occultist, and an environmentalist. If Hitler was alive today in America, there is no question he would be a Liberal Democrat. And, he would fit right in with them, especially with their antisemitism. But as the Left always says, never let the truth get in the way of a good lie.