I doubt anyone here believes that what you stated is untrue. You’re getting downvoted for being a passive-aggressive, melodramatic wet blanket.
Is this you too?
At a child’s birthday party: “What awful parents, providing dessert. Don’t they know childhood obesity and diabetes are on the rise?”
At the pub: “Get your shit together, chronic alcohol consumption doubles your likelihood of stomach and liver cancer.”
With a friend: “Why do you hate yourself? You’re clearly at least 20 pounds overweight. The earth has limited resources, stop using your advantage as a member of the global North and eating other people’s food.”
They’re all true and, like your comment, needlessly needling and hyperbolic. Consider there’s more to communication than your false dichotomy defensive reaction of “true or not”. There’s also appropriate time, place, and tact, all of which you clearly didn’t consider. That’s why you’re getting downvoted.
But if you’re on the Internet and not providing unsolicited, passive-aggressive advice, are you REALLY on the Internet?