I would love to live in a world where regardless of anyone's beliefs, we can just be friends and be nice to each other. People get attacked from both sides and tribalism exist and it ruins a healthy society. In the famous words of Rodney King, why can’t we all just get along?
I understand what you are saying, and there are times I feel the same way. BUT, the Truth is Jesus taught us that living in this world would NOT be that way. Our loving Him will surely mean the world hates us. As well, while we can be courteous and respect others, to be friends with unbelievers goes against what Jesus taught. I know people will say they have lots of unsaved friends, and I have, well, no, actually, I do not have any unsaved friends. But that is because I have very few friends. The ones I do have are all saved. Jesus asked us "what fellowship has darkness with light........."
However, among Believers who may have differing views of the meaning of Scripture, there SHOULD BE Christian love and respect shown. But, there are some that never will agree to that. Sad, but true....