It doesn't bother me in the least. I'm very happy I'm an atheist. It's empowering to realise that this is your life, and it's up to you to make the best of it. 

But when I said it is impossible to have a rational discussion with religious people, I was talking about your appeal to faith without evidence. That is the last refuge of the irrational believer, and it precludes any rational response. 

If you can assume anything, you can prove anything. Your evidence for the existence of god is the same as my evidence for the existence of fairies, ley-lines, chakras, pink unicorns or the flying spaghetti monster. It is not possible to "debate" their existence rationally. The argument that one cannot prove their non-existence is not a sufficient reason to believe in them. 

That you cannot recognise the difference between proving existence and proving non-existence merely suggests that you could use a course in elementary logic. As all believers could.