Ask yourself this: where do rights come from? (It may be self-evident.)
You can decide whether you are really a conservative if you truthfully answer that question.
Rights don’t “come from” anywhere. We are born with them.
Atheism and conservatism are two separate things, unless you’re talking about the social conservative wing of the
GOP.
Conservatism and religion don’t really have that much in connection, except that we make it so. The concepts are largely unrelated.