You assume that unless someone believes in God he will inherently be immoral and he will not let's say murder someone just because it will be socially damaging to the said person.

In other words it assumes that an Atheist would have no problem to murder people if he would benefit from it and there was no fear of punishment. This is a very common religious argument 'that people who dont believe in gods have no moral values'.

This is clearly wrong and offensive. Substitute 'Atheist' with your religious belief and you will see what I mean.

But apart from being wrong its also religion bashing. (Atheism being a religion according to the backroom rules).

I would like to stop this here. Maybe I cannot explain what I mean well enough.