The morality of abortion is not a religious belief, any more than the morality of slavery, apartheid, rape, larceny, murder or arson is a religious belief. These are norms of the natural law of mankind and can be legislated even in a completely religionless society.
"The trust of the innocent is the liar's most useful tool." : Stephen King
"Commerce with all nations, alliance with none, should be our motto." Thomas Jefferson