When is a unique individual created?
Forget religion, just answer this from science. You know the answer - sperm, egg, fertilization, dna & all that.
This whole question is about speaking up for that unique creation, which we may have facilitated to occur in an insanely stupid place (a test tube), and literally placed on ice.
So then, unlike state in the summary, the problem is about picking and choosing who lives and dies, WITHOUT THEIR CONSENT.
How can that possibly be difficult to understand?