you nailed it with "...my body...my choice."
That belief is the standard for another issue, so it should apply to this one too.
People will.choose to apply it selectively, however.
Oh, so true! And that's what's so frustrating about it.
Let's list the laws and mandates concerning sovereignty over one's own body that so many people had no problem with (or at least didn't think was a big deal) even though they're strongly against having to get vaccinated, tested and/or wear a mask:
Laws against DUI
Seat belt laws
Helmet laws
Prohibitions on smoking indoors
Legal age of alcohol consumption
Laws banning or restricting the use and consumption of illicit drugs
Vaccine requirements for most school-age children to attend schools
Vaccine requirements for many healthcare professionals, a la the annual flu shot
Laws making rape illegal
I'm sure there are more out there.