I think people leave religion because they begin to think critically about things. Once this process begins, it continues on, well after deconversion. Critical thinking is then applied to political ideas. Without the dogma of "the left is bad" being a constraint on freethought, many atheists consider the merits of leftist positions.
Some still end up being conservative (usually more liberartian). But many perceive the left more clearly, and see that the left is actually more morally sound than they were previously led to believe.
In the end, where people go is up to them. If new atheists drift toward the left, it's possibly because they were duped into being conservative before.
Some still end up being conservative (usually more liberartian). But many perceive the left more clearly, and see that the left is actually more morally sound than they were previously led to believe.
In the end, where people go is up to them. If new atheists drift toward the left, it's possibly because they were duped into being conservative before.