This only points to and confirms our base level instincts; that what we are hard wired for. This applies not only to our species, but all species. Rather than acknowledge and work within this, we spend our time denying it and forcing on ourselves what is not natural and then get upset when we realize our utopian rose colored version of what we hope for isn't working.

“There are two kinds of people…” lol

My favourite saying. " The two are not mutually exclusive. " Like literalism and metaphor.

Monotheistic Dualism

It’s Hans Rosling telling us what he does.

There are two factors at least at work, both fear and laziness. Laziness because it is easier to think in dichotomies rather than bell curves, and fear because we distrust the unknown and what we don't understand, which in turn fuels tribalism. Both are justified to a degree, it is wise to fear the unknown, the old floor boards, may be weak and rotten, and laziness is an evolved trait which saves us energy. The real problem comes, when the two work together powerfully and produce a discontinuous mindset.

It's the people who choose to divide others in order to conquer who are most damaging and dangerous.
It's people who are susceptible to being divided, media sources/opinionators like carlson, etc. prey upon.
And of course politicians.
What I do not understand are the people who literally seem unable to see this.

The 2 groups easily turn into good and bad so it is common to assume that religion is right because it solves all ills and believers have to have a place to put Hitler. A desire for vengeance is more acceptable than just saying Hitler is dead. On the smaller scale all sports involve these principals. This is why in a recent blog a woman replied that I did believe in god. My statement was simply that everyone knew god loved sports. If you agree with my statement it shows that you are supplying what your god does or does not believe in.

I'd would agree with this statement. I see a likely survival advantage of creating loyalty to the survival of one's tribe, clan, country, etc. - even to the point of being irrational. Prejudice is a natural consequence of this occurance. It doesn't make prejudice cny more just or desirable is a greater sense, only that it is natural occurance which under certain circumstances provide survival advantages.

Concerning conflict, human being love certain aspects of conflict. Sports are all about confluct but contained within certain parameters. Some might be more difficult to recognize, but others are very violent and are known to draw blood. Boxing and other combat sports as well as sports like American and worldwide football are well known for violent contact in the course of play between opposing team members.