Why do some atheists try to disprove God?
Because they are too thick to realise that this is impossible to do.
Why do some Christians try to prove God?
Because they are too thick to realise that this is impossible to do.
While there are very few atheists that try to disprove God, since it is not part of our faith to do so, there are a huge number of Christians who are too thick to realise that it is impossible to prove that there is a God.
Atheists have more important things to do with their time.