I highlighted two sections of your post, because they absolutely apply to the 'new' McCartyistic bullying of sincere people, right here on DU. Eg, I was told recently that if I do 'take the Pledge of loyalty to our nominee (which we do not have yet) 'you are not a Democrat'.

And the replacement for McCarthy's assault on those who questioned, iow 'Commies' 'Red's has been replaced right here on DU with 'Putin lover'.

I, I have been told, am a 'Putin Lover'! But it helps to know history and to consider sources when these old 'red scare' tactics emerge, as they probably always will.

The leap from someone's sincerely expressed concerns regarding our Foreign Policies and the possibility of a Third World War to 'You love Putin' is so reminiscent of the McCarthy era it should give Democrats at least, a chill down their spines.