Once a Right to Life Amendment is passed then abortion no longer becomes a States Rights issue, whereas the LP would be out front arguing for a repeal of the 13th since it infringes on the 'rights' of people to abrograte their own unalienable rights.
Only it won't be passed. Constitutional Amendments require a 3/4 approval of the States, and there is simply zero likelihood that the 19 States of "Gore Nation" are going to approve a Right-to-Life Amendment any time in the foreseeable future (at least not until anti-contraceptive Churches and home-schoolers out-breed them for a few generations).
On the other hand, it is very reasonable to expect that most, if not all, of the 31 States in "Bush Country", would enact heavy regulation, or outright prohibition, of Abortion within months after the Repeal of Roe vs. Wade.
You would willingly, and callously, sacrifice the lives of millions of unborn babies whose lives could be saved by State Anti-Abortion Legislation on the fantastic altar of a "Right-to-Life Amendment" which, requiring 3/4 of the States, isn't going to happen -- all so you can score Political Points against Libertarians who (sensibly) favor the Repeal of Roe vs. Wade and the enactment of State Anti-Abortion Legislation.
Jihadist.... your pridefully self-congratulated "moral conscience" is an Atrocity against everything that is Good and Holy.