You cannot embrace the murder of innocent unborn children, gun control, amnesty to illegals, homosexual marriages, etc. and expect the conservatives to vote for you, either. Rudy loses in this one.
as a practical issue, the pro-life movement has as its #1 goal - overturning Roe. that gets accomplished with constitutionalist judges.
empower the people to decide the issue at the State level, through their elected representatives. there is never going to be constitutional amendments banning all abortions and banning the States from deciding gay civil unions. even if a Brownback/Gary Bauer ticket were elected president, that wouldn't happen.