It doesn't stop at "knowing what's best for everybody." I'm fine with people thinking they know things; what I'm not fine is the power of the state being turned against everyone to enforce what are nearly always fringe or minority beliefs.

Sorry, vegetarians and vegans, but most of the world is just fine with eating meat[1].

[1] https://www.statista.com/statistics/1280098/global-non-meat-...