Sophistry for the loss, Weaver. You're old enough to know the origins of the March for Life and its focus on abortion.
March for Life (Washington, D.C.) - Wikipedia
And you're smart enough to realize that other groups, inclusive of all who are already born, already do have rights to life (although it's also true that globally, very difficult triage decisions have had to be made because of COVID).
If I had been marching in D.C. and had asked me, I would have responded just the way I have posted for many years: There is dignity and worth in every human life, but some are more likely to be marginalized than others--the very old, the very sick, the very disabled, and the most vulnerable of us all, the unborn. Respecting life is about respecting ALL life, and yes, I do worry about those who are most likely to be marginalized, which includes but are not limited to the unborn.
I am going to assume in good faith that you have visited nursing homes and are familiar with the fact that for some, these are dumping grounds in which to be forgotten...that you have familiarity with state "schools" for the hopelessly mentally damaged and that you understand how little thought is given by most to those who are vulnerable because of profound disabilities.