We are tribal creatures that have organized in small groups for 99% of our species history. Is it a wonder tribalism is interfering in our nation building? From an evolutionary perspective, it's actually remarkable how far we've transitioned to a state of laws governing such large numbers of people across such vast swathes of continents. We've done well.

And it will continue to be difficult. It's "unnatural," so to say. But we can find solace, and hope, in the fact our species is capable of rising beyond our biology. We are the only life form we know of that can do so. We've come this far. Who says we can't keep going? I've always enjoyed seeing naysayers proved wrong.