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"However atheists are guilty of the same, their non-belief in God is a belief, which they also try to impose in public and private sectors as this book demonstrates."
You can't compare writing a book of opinion to legislation that prohibits atheists from holding public office. You can't compare it to elected officials saying atheists don't have the same rights as believers. Most Americans won't vote for an atheist and they're happy to say so because they know it's okay to be bigoted against atheists.
So let's not pretend that a few recent opinion books supporting the philosophy of atheism are anything like the government supported bigotry and discrimination towards atheists that has existed since the first atheist said, "Uh, that doesn't really make sense."