Please don't cross into the flamewar style, no matter how strongly you (and others) feel on a topic. We're trying to avoid that here, and need everyone to pitch in.
Plenty of HN users can, and do, disagree with that in ways that don't involve snark or personal attack. This isn't about your underlying views—it's entirely about comment quality. Comments like the GP lead to further inflammation and aggression in threads, which makes for boring, nasty, predictable discussion. We're trying to avoid that here.
They were being snarky. Nobody would say "I want to control your body" (well, not in this context anyway).
A better way to phrase it would probably be "Why should anyone be able to tell me what to do with my body?" (and another sentence or two elaborating on the thought)
https://news.ycombinator.com/newsguidelines.html