1. The word "wedge" is just my fancy way of saying "It seems like under your principle, A and B are equivalent. Tell me why they're actually different."

2. A quarantine is a situation where someone other than person X gets a say over what happens to their body.

3. A rule against late-term abortions would also be a situation where someone other than person X gets a say over what happens to their body.

What makes 2 (quarantines) morally acceptable while keeping 3 (rules against late-term abortions) morally unacceptable?