Consider the contrast between these comments and the abortion debate in the US. I think the essence of the latter is a disagreement about the absolute and relative moral statuses of and rights due to fully grown humans and potential people. I expect it would continue to exist even if everyone agreed on the pertinent biological and medical facts of the matter.

I think the abortion "debate" is a Blue vs Green, Arguments as Soldiers issue. Pro- or anti-abortion doesn't follow logically from other positions held by each party. Counterfactually, if the two US parties had chosen different positions on abortion due to some historic accident, then I would expect their electorate to still support each party along current divisions.