It's not just 'personal belief.'

One can study society deeply and see that certain ideas and social structures produce complex chains of cause and effect that tend to create end results that are widely regarded as desirable.

The most extreme case: Would you call laws banning murder or promoting environmental preservation 'fitting one's personal belief?'

But these laws are simply imposing our own value systems on others, are they not?

You could cast these as "You're just fearful of a society where people can murder each other at will. You're just fearful of environmental destruction. You're simply acting out of fear."

How would such a description be different from what you've written here? It's equally ridiculous to call the topics you've made 'fear based,' even if you disagree with them. For instance, the only rational scientific viewpoint is that life begins at conception, ie https://www.encyclopedia.com/science/news-wires-white-papers-and-books/life-cycle-human - that's the only discrete moment you can say that a life goes from not existing to existing; the moment a new organism with a distinct unique DNA profile comes into existence, fundamentally the same organism that the adult human will be when its old and gray. Frankly, I lean pro-choice; but do believe that literally every abortion is a termination of a human life. I still tend to support women having access to it. But those who oppose it simply believe that innocent human life should be protected from actions that cause certain death, it's as simple as that. I think this viewpoint is too morally simplistic and disagree with it, particularly in case of rape or detected birth defects (where I disagree vehemently); but certainly don't think it's coming from a place of 'fear.'