Atheism is a bit odd really. I don't really have solid evidence that there's no God. All I know is that he hasn't got any that there is one, but at least I have reason and rationality my side. My notion fits all we know about the laws of nature but his doesn't fit any of it. But I don't need to dismiss or demolish his argument because I can't. As for dashing his hopes, nah, let him keep them. His cause is hopeless enough as it is.