One's perception of the world, culture, behavior, etc, has a number of influences and sources, including biological. These biological differences are expressed in one what one would roughly races and further subdivided into what are roughly called ethnic groups.

There are vast diffeerences between and within ethnic groups. Which is why your 'bone' does not make much sense. Unless you think that you have more in common with a white SJW than a black conservative.

These differences can be observed sufficiently in large groups of distinct races and ethnic groups so draw general conclusions

Coming to 'general conclusions' would not lead one to avoid everyone of a given group.

Based on that premise, I would rather choose not to associate with certain groups, as they are prone, especially in sufficient numbers, to engage in the actions that people more similar to me take issue with. I do not view other groups as inferior to me and my group, I simply prefer behavior, culture, community, etc that I most readily experience within my own group.

I also prefer my group. Sensible people.