the slippery "F" word - my solution

[yuriythebest]

With no proof whatsoever, people believe in God. That’s fact. They actually believe they can have a one way conversation with an unseen god and that , through some kind of magical telepathy, hears every word they say. Why aren't these people in an Insane Asylum?

cause then the insane asylum would be 90% of the world. the atheists might as well move to the moon or to a city of marvels in the middle of the ocean where only great minds come and that will subsequently sink and be a place of adventure

If a person admits to having no proof for his belief that's fine - one can then discuss why he chooses to do so. If they play the faith card you can talk about how believing something with no evidence is a BAD thing - if they try to imply that you also have faith use the argument in the original post.