You don't get a racial out-group bias because that also is totally contradictory to colorblindness. You wouldn't have an out-group bias in anyone naturally form unless they lived among other people and though: "Oh wow, my people are actually really shitty. I think I should move." That happens, but it's rare.

People always have a slight natural in-group preference to the familiar, and then a stronger natural in-group preference to the familial.

A colorblind approach intentionally asserts that you should not make any conscious effort to bias yourself one way or another, and should examine people's behaviors.

This may allow for a rare handful of people to look at their own local culture and think, "Hmm. These people are actually shit." But the default preference is towards an in-group. People do eventually leave the trailer park and the ghetto and then develop a bias against their own group if their personal experience was bad, but that's always the exception because of natural human pre-disposition.

An explicit out-group preference for a population can only be the result of aggressive conditioning for an out-group preference. This does happen on occasion, and one famous account was of the Japanese absolutely venerating American culture and technology as innately superior towards the end of the 19th century, as they feverishly industrialized. The Japanese government and people were aggressively taught that they were a backwards people who needed massive social and technological change to be equals to the rest of the world. This actually caused them to do exactly that, and they accepted social changes in the span of 2 generations that would normally have cause enormous bloodletting in most societies.

However, what the Japanese didn't do was promote the idea that they were innately inferior. Just that they were primitive by comparison, and that they could improve with effort.

What is being happened with Whites is what I call "Voluntary Sonderkommandos".

White people in American are being conditioned to hate whites as innately inferior. That there is no opportunity for improvement because the big 4 categories: whites, straights, males, and Christians; are an inherently morally degenerate race that is not physically capable of being non-degenerate.

The issue at hand is that the Civil Rights movement was primarily Illiberal philosophically, but most Americans are philosophically Liberal, as the US and it's culture is a Liberal Revolutionary Republic. Most of the Civil Rights actors were avowed racial nationalists and racial socialists. At the turn of the 20th century, Booker T. Washington was pushing for improving the lives of blacks in society by having them improve their culture from the Ulster-Scottish culture they were acculturated with in the Antebellum South (which was the predominant southern American culture at the time), into something more akin to the Protestant-English model. His primary opponent in this was W.E.B. DuBouis, who was a revolutionary Communist, and even adopted the principles of the german Volkish movements to Blacks. Communists and Socialists had been concentrating in black communities prior to the Civil Rights era for nearly 50 years. When it became clear that the Old Progressive Racialism was out-of-favor in the world after WW2, the Communists and Socialists started nipping at the Racial Progressives, while allied with the Black Nationalists (Volkists).

The Civil Rights Era is separated by two distinct strands of the movement: the Christian Liberal roots of people like MLK, and the Black Volkish roots of people like Malcolm X. It was the John Birch Society that was aggressively pointing out the Socialist and Communist operations within the Civil Rights movement, though they may have been surprised that the Fabian Socialist establishment preferred to ally itself with Christian Liberals, rather than Volkish Socialists. MLK was allowed to progress into the mainstream, and the establishment attempted to cover over the increasing violence and purity spiraling that the Communists, Socialists, and Black Volkists had collapsed into. Especially since many of them were now operating with the assistance of violent street gangs.

The Liberal philosophy of Colorblindness, or really just Racial Apathy, is perfectly acceptable to an American society that doesn't really want the government to regulate race. However, the Communists, Socialists, and Volkists never went away, and were being absolutely idolized, even as terrorists. Since a whole swath of the Civil Rights movement had been made of of these radicals (and the radicals themselves expanded into other 'minority rights movements', forming things like LGBT, Mexican Immigrant, and Native American movements) the racialist core of the Civil Rights movement festered until enough of them had gotten through academia and exploited the internet to promote their old Volkish, Socialist, and Communist philosophies.

While most white Americans were happy to accept the Liberal philosophy of not regulating race, the radicals festered in black communities, the way that white racialists had festered in the reconstructed South. Whites turned away from Racialism with the emergence of Goldwater style Conservativism and a Liberal philosophy towards Civil Rights, and blacks turned towards racialism. American black populations were exposed to these Volkish philosophies about the incredible need to see one's race reflected in things, and to have "self love" and "love of people race" as core to their very identity, even going to create a nonsensical racial narrative about Pan Africanism and "The Black Diaspora". It shouldn't surprise you that a Communist invented Kwanza.

Instead of maintaining that Liberal philosophy, these black Volkish movements were given free reign to construct a racial meta-narrative and push it through university education, and now as a bully pulpit even against corporations and organization with Social Media and Corporate Media in compliance.

White Americans are being force-fed Black National Socialism's racial meta-narrative. They are being taught the a kind of Black National Socialist narrative on Judeo-Capitalism, which you could just think of as Mayo-Capitalism. Lo and behold, this has caused an extremely unhealthy and dangerous amount of anti-white hatred and self-hatred to be normalized, as Useful Idiot whites subscribe and re-enforce a Nazi narrative about them.

That is where the out-group preference comes from. The Fabian Socialist Cathedral's use of Black National Socialism as a weapon to control political and economic opposition.