Its their opinion, nothing more, nothing less. Opinions are like farts or some related body parts - everybody has them, so what? Just that I and bunch of folks around have some opinion doesn't mean we have the right to push it to the rest of society.

That's inferiority complex pushed into moral superiority feeling. All just emotions of unbalanced/uneducated people who should know better but clearly don't. No place for such behavior in truly democratic society, their rights to decide what should be happening and what shouldn't generally end at the door of their house (and even that just within legal framework).

Otherwise lets give some room for neonazis too for example, they certainly have a vision about how the society should look like and behave. They are at the end just bunch of folks who want to change society for what they consider a better one, right?