Overpopulation: You get to cast the deciding vote.

[Catholic_Lady]

I dunno... I think mandatory disease vaccinations for kids entering public school is a far cry from forcibly sterilizing people's bodies and taking away their right to have kids...

In both cases, there is a violation of the integrity of the body of someone against their will.  In both cases, there is some (small) risk of serious harm to the individual.  In both cases the effects of not doing this are serious for society; that is, for other people (given the hypothetical).

Both cases would fit with the idea that "Your right to swing your arms ends just where the other man's nose begins."  You don't have the right to cause other people to starve to death, do you?

Sorry. I still don't think that requiring vaccinations for kids who want to attend public schools in any way shape or form equates at all with the government stripping away a person's right to have children by permanently sterilizing their bodies by force. If the blue underlined line on your post stands alone as its own principle, all kinds of heinous things can be "justified."  Just because something being done in a small, relatively insignificant way is acceptable, doesn't mean the super extreme of it is acceptable. I shouldn't even need to argue or further explain this.