No. I don't believe in karma.
I don't believe in religion.
Actually, I think those are things people are making up in their minds just to feel more comfortable with the cruel reality.
While it's fine to say that you don't believe in religion, it is simply naive to say such a thing about it.
I used to, as an atheist, think the same things and to an extent still do like:
"Religion is simply a coping mechanism"
"It was used to control people"
"It's for collecting money"
"Religions are used to justify war"
But at the end of the day it's simply something to believe in.
It may seem illogical to have faith but if you take an interest in philosophy at all you would realize that knowledge and science are simply subdivisions of faith.
To be fair, science is simply an extremely popular form of religion.
Classical religion gives us morals, community, hope, as well as various other great things.
If you think this sounds ridiculous, read about Plato's allegory of the cave and then come back to me.
Mind you, I say all of this as what one might call, an atheist; a term that I don't quite like to identify with.