I’ve been on FR since 1998, and my views match those of many Christian conservatives on this site.
We will not violate our allegiance to God just so Rudy can get a better shot at the presidency.
It won’t happen.
Promises of supporting third party candidates and refusals to support viable opponents of Hillary Clinton does in fact "violate your allegiance to God". You know full well how things work, and helping Hillary by refusing to vote for her opponent does not help your cause in any way.
The President cannot directly affect Roe V. Wade anyway. He can only do so via supreme court nominations, and I trust any Republican, even Rudy, to nominate someone more likely to oppose Roe than Hillary, who will deliberate pack the court with leftists guaranteed to uphold Roe.
If you live in a state that will vote in the primary, then vote for your favored candidate. But anything less than promising to support a viable Republican opposition to Hillary is just shooting yourself in the foot.