Abortion is not a right. Never has been, never will be.
But the right to life is unalienable, because it is God-given.
And now we have the truth. It doesn't matter what the Constitution says or anything else. This is 'Gods Law' so we all have to abide by it because it supercedes our laws we enacted and is super-natural (i.e. non-debatable since logic cannot apply).
We are not arguing Constitutional law but scripture. Just be clear up front on the agenda so I don't waste any time.
In the future, just state that you rely on scripture as the basis of all laws and it clears it all up. Nothing we have done in the 2000+ years since it was written matters so we know that our 'human frailties' count for naught.