In a quote from the Human Genome Project, one can see that even well respected and knowledgeable scientists in the field disagree about race: "Race is a fluid concept used to group people according to various factors including, ancestral background and social identity. Race is also used to group people that share a set of visible characteristics, such as skin color and facial features. Though these visible traits are influenced by genes, the vast majority of genetic variation exists within racial groups and not between them. Race is an ideology and for this reason, many scientists believe that race should be more accurately described as a social construct and not a biological one."
There is a whole industry based on exploiting race. People make fortunes, become famous, and gain great power by exploiting race. Politicians garner votes by dividing races, not by bringing them together. They conspire with community organizers to write laws that force companies and institutions to pay out huge sums for "racial discrimination".
Lawyers and judges make a living off the system too. The lawsuits must be prosecuted, defended, and judges. In all society really doesn't benefit at all, but individuals do. That's why the exploitation continues, those that benefit are in power and want to keep it going.
The next time you disagree with someone and feel you need to argue, try to see their perspective. When we are faced with division, don't buy into it. Resist the temptation to see people as the other, we are all humans. We just have different experiences and belief systems.