Yes, they are leftwing. But according to Jonah Goldberg, during the Wilson administration leftists openly described themselves as fascists. In fact, they were racists who held to an evolved hierarchy of human races with themselves occupying the top tier. Thus they were eugenicists because they saw the need to purify the human gene pool.
But Hitler’s brand of National Socialism was really the evil twin of International Communism. One was nationalist, the other global.
Start demanding Democrats condemn by name Wilson and Byrd and their names, statues be removed from schools, streets, events, everything else. This will draw attention to Democrat history and Progressive roots.