When looking at the PRESIDENTIAL offerings, those seem to be the choices…
It seems that this is part of where the distinction is perspective on these matters often comes into play.
Many people who want to talk about voting pro-life look only to the highest levels. Obviously, this is very important and can not be disregarded. But, as Tip O’Neil said, “All politics is local.” And, really, this is true.
Now, given, money is playing such an increasingly significant role that party leadership plays a greater factor in guiding the candidates supported.
Yet, even there, they are responsive to local factors in so far as they desire to see their own party’s candidates elected. If a pro-life Democrat gets nominated in his state for Senate, therefore, they aren’t going to abandon him by disinvesting, unless they honestly think he has no shot at winning the general election. And, typically, a party’s leaders do not want to challenge incumbents, but support them. So if you have a pro-life Democrat in place, somehow, he will continue to be supported financially for that office over time to keep things from getting nasty and divisive.
Further, generally (though not always, admittedly) candidates for higher office are those moving up from lower elected offices.
Ultimately, then, it returns to being able to work a politic from the bottom up. Which is to say that political parties are much more complex and larger than any prevailing consensus, party platform, major elected official, or even a president alone have to say about it. They are reliant upon a number of factors which must somehow work together towards collaboratively coalesing for a common good. Which is where there is always opportunity for positive growth, if we commit ourselves to working within the system as best as possible and blooming where we are planted in the concrete contexts that exist.