Why Is This So?

If people fear what they don't understand, isn't there a limit for how far we can go, what we can discover and how we can develop? I get triggered to figure out things I don't know even though it will take years, centuries or beyond or even if I wont be able to ever discover if there is any truth or reason at all behind it. Would there be such things as wars and quarrels and unnecessary misunderstandings? Isn't fear what keeps our society chaotic? When will we all come from a place of love? When will love conquer fear? Wouldn't that be a wonderful place to live?