What will make us respect and love each other?
I've always liked this Saying: "If you put Jesus, Buddha, and Mohammed in the same room together, they will embrace each other. If you put their followers together, they may kill each other!."
I think that is the basic question. If God is our creator, then of course we have to respect and cherish our fellow creatures.
That is why the question about Gods existence is so important.
Unfortunately belief in God does not always help us to accept each other. Now why is that?