Inaccurate:
Incorrect. What you are saying is not true. Just go ask @stefan.molyneux about that. Generalities tells you certain patterns because different people are different.
Patterns vs Exceptions
Most people make certain choices. Most people prefer collectivism and therefore should not be eligible to be in America. Some people are better at certain things than other people. These are generalities. These are statistical patterns. Yes, individuals can break from the patterns.
Many Reject & Regret
But most of them choose not to. Many people choose to be victims. Most people choose fake versions of federally enforced peace and security over risky freedom. Evidence is seen everywhere. If you are asking for it, you are basically denying reality. You have the right to say, "Where's the proof the sky is blue?" I could explain why the sky is blue. Likewise, you are asking me to explain what we all know is true.
Three People Groups
There are three main lines of people groups, three colors, the black people, the white people, and the yellow people. These three groups are related to each other and all humans who are human are from these groups. Generalities can describe their strengths and weaknesses. These are generally true no matter what.
Blacks in the Early 1900's
Now, keep in mind that African American business men were beginning to make more and more money in the late 1800's and even more in the early 1900's. Different groups, including democratic groups, begin finding ways to stop that. Individuals are free to make choices.
Breaking Patterns
Some people break patterns and they do extraordinary things. We should always encourage people to fulfill their potential.
RE: Are there absolutes? Are you absolutely sure?