Why only question Christianity?

I would like to apologise for my previous article.  I insulted atheists, and it was wrong.  Sometimes my emotions get the better of me.

I would like to ask a question to non-believers.  Why do you seem to target Christianity?  There are so many other religions, but yet Christianity seems to be the only religion worth questioning/attacking.

Might it be because there is something drawing you towards Jesus, and if you can prove He doesn't exist, you can ignore Him?  Might it be guilt? You have abandoned your creator, now you feel the need to prove that He never existed to start with?

It is an earnest question, and I would truly like to know why. 

Also, would you like ALL religion banned from schools, and not just Christianity?