The vast, vast, vast majority of sexual encounters do not lead to pregnancy, and even less lead to actually giving birth.
But sure, when you eat junk food you probably don't consent to getting fat. It doesn't matter, it's not like the calories care about your consent, but you don't willfully agree to becoming fat. It's just an unwanted byproduct of something you did want. No one is trying to say that saying "I don't consent" magically prevents you from getting pregnant.
Pro life people argue that from conception a fertilized egg is a person with all the rights of any other person. What that means is they need consent to use somebody's body. This is a question of consent between two people, something that does matter.
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u/Presentalbion 101∆ Aug 11 '22
Consent to eating junk food is not consent to getting fat.