Another reason...
While there are still laws on the books that make blasphemy illegal, none have been enforceable since 1928 - making it 85 years that people have been able to express their Atheist, Agnostic, and Anti-Religious beliefs without fear of legal reprisal.
People in America can blaspheme against Allah, Buddha, Darwin, Dawkins, Elvis, Jesus, Mohammed, YVWH, Zeus, and Zoroaster and not fear arrest, prosecution, or jail time.
Whatever alleged fate awaits them in the "Afterlife" is purely a matter of conjecture...