the same way...for instance, the root of Catholicism is Judaism which believes that "Personhood" begins at birth, while other Christian religions believe it occurs at "Quickening", as do Muslims or Hindus...therefore, it's inappropriate for one religion's view to take precedence and cause the government to force everyone's adherence to what frankly is a minority opinion, especially considering the major impact on people's lives that such laws would entail.
To me, the best path is to focus on means of dramatically reducing the number of "Unwanted Pregnancies", and to accomplish that we need a) widely available (and zero cost if necessary) means of contraception..b) universal Sex/Sexuality Education for all ages...and c) $$ to fund programs that make carrying a pregnancy to term "doable" for women on the fence deciding. The evidence I've seen (and posted) from European countries is compelling for each of those areas...e.g. the percentage of abortions in those countries is half what ours is...without all the rancor.