Agreed. Also, “Your body, my choice” is possibly meant as a threat, possibly meant as a taunt. But, what it definitely is: a statement of power. Asshole men are saying this because they think the landscape has shifted so much that they can now get away with it – and they’re probably right.
American police are already some of the biggest right-wing assholes. Who do you think they’re going to side with in a confrontation where a man says this to a woman? Even if legally a woman were 100% justified in responding with violence, in the real world where men have the power, and men are feeling even more powerful since Trump’s victory, being legally right isn’t enough.
The purpose of an apostrophe is to warn people that there’s an S coming.