Only someone who hasn't explored, in depth, multiple religions can say the similarities are superficial.

Jesus, the sun of god, is born on December 25th. Do you know just how many other religions have that exact same date and story? Its not coincidence. And it is not one story being told in lots of places. It is a VERY significant event, that atheists, if they had any deep logic, would respect and honor.

Atheists have no logic.
In order to be an atheist you have to believe in the largest coincidence(s) in the universe.

However, the most important thing to realize is that we were given free will.
In order to have free will you have to be able to believe or not believe in God.
Also, there has to be a path to find God yourself, each person, individually.
And that other person's choice has to have no effect on your belief.

Thus, we end up with a world were science cannot prove God.
However, there are signs of God everywhere.
"Seek, and so shall ye find"

God left so many fingerprints at the scene of Creation that you wonder — does He want to be found, or does He want to be stopped?
Robert Breault

Further, atheist can only access level one truths. And without level 2 & 3 truths, you really cannot make a fulfilling life. To an Atheist, only relative truths exist, and thus, there is no good, nor bad. Everything that happens is by chance. You are a clump of cells with no future. That kind of logic leads to a very sad life.