The difference between a kestrel egg being destroyed by a human, is of course, that this is harming something else. It would, of course, be immoral to forcibly terminate someone else’s pregnancy with no consent, which is analogous to your example.
The fact is that restricting abortion does control women’s bodies. The assertion that an embryo is sentient is a belief. Society shouldn’t base laws, and control over life on belief. You can dress it up all you want, but this is controlling women’s choices on their own body. And I will take no lessons on what’s helpful from those who call or make out pro-choice people are baby murderers. ;-)
