They really haven't changed, they just changed the standards of what's considered "fringe." For instance, calling Obama Hitler who's using FEMA camps as Right-Wing detention areas isn't fringe, it's commonplace. We've heard it so much, it's not fringe, it's a completely normal stance to have.

You really gotta set the bar higher if you wanna be seen as fringe today. Lemme start them off. Lizardmen!