Leftists wouldn’t accuse every straight white male, who isn’t a self-deprecating cuck, of white supremacy if they understood the praxeological insight that value is an expression of subjective preference.
Having a subjective preference as a white person for the company of other white people to the exclusion of others is natural and doesn’t necessitate a belief in the objective supremacy of white people over other ethnicities.
After all, Dunbar’s number applies to everyone, and “objective value” doesn’t exist. Everyone is limited in their capacity to remember details about others and thus everyone is forced to make use of heuristic judgments. That’s how our brains sort and make sense of large quantities of data so that we can make decisions and act rationally.
Even babies do it.
If we didn’t have this ability, everyone would be forever paralyzed by indecision. That people would self-segregate based on likeness is hardly surprising given that it’s been happening since the beginning of humanity.
The process of civilization itself wouldn’t be possible absent in-group preference because no one would be able to communicate fluently enough to divide labor or develop trust. In-group preference saves time and helps to avoid debilitating impediments to productivity like language and other cultural barriers.
The degree to which you interfere with the process of self-segregation through forced inclusion is the degree to which you gum up the works and piss people off.
For example, you don’t have to think country music is objectively superior to prog metal to have a subjective preference for country music to the exclusion of metal. However, if you forced your way on stage at a metal show and started playing country, it probably wouldn’t go over so well, and the quality of the experience would be diminished for everyone else.
However, if leftists understood the action axiom and the a priori truths which flow from it, they probably wouldn’t be leftists.