Unified Race, Utopia or Not?

Are you more likely to bicker someone whom you have no sort of connection to or someone who is very much like you?

Well, neither, but I think I get the gist of what you're saying.

My argument, however, is that those changes will be purely superficial. There will be plenty of other issues we will find to bicker over. Such as the length of an angel's wing. And it will be just as brutal as it is now. Assuming that human nature hasn't changed entirely, which is possible. But biology as we know it would not select for those characters.

Even with someone who is genetically no different from you and is raised in practically the same environment you will bicker. For instance, take identical twins.

We are programmed to bicker.