So if CBayer meant it in the way you interpret it, she would be basically wishing that all humans were dead. I'm sure she doesn't wish that! Presumably she meant that she wishes that Dawkins' viewpoint (or what she perceives as his viewpoint) would become extinct. I've often heard the expression used in this way. I might say 'I wish the free market ideologues would go the way of the dinosaurs' or 'I wish the political pro-life movement would go the way of the dinosaurs'- I don't mean that I want them all to drop dead; just that I want their viewpoint to become outdated and cease to exist.
I live and work not very far from Dawkins and have my antennae out for religious-right attitudes in and relating to my home area. The religious-right do exist in my backyard; do have a baleful influence; do collaborate with some American religious-right elements; and do sometimes use anti-Dawkins sentiment as an excuse/rallying point - so I think I'd pick up on real violent anti-Dawkins attitudes. I don't agree with CBayer, and neither wish nor expect Dawkins' views to become extinct - but I don't think she meant what you say.