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Sure, but that's a piss poor analogy. The baby doesn't have any choice in the matter.

in my analogy does the top? no right? he can GTFO or face the consequences.

Again, the baby has no such choice.

yeah, that's right, it doesn't, which is probably good since a fetus has no agency.

I don't know what you mean by agency in this context.

the ability to make choices for oneself

Neither does an infant. I don't think that means they should be killed at will though.