What is race but an accident of history frozen at a particular time.
That accident is the result of a community trying to find a sustainable livelihood, given a particular environment.
A community is a group of people who find kinship on the basis of a common factor or a set of common factors which they all share and which they can all identify with - either language, or way of life, or attire, or family members, or customs, or beliefs.
It is therefore likely that in a community with has within it many varied characteristics or features or factors, there will be as many factors.
Some factors are at individual levels - family. Some are at social levels - language, customs, beliefs, attire.
Some factors operate at national levels - language, way of life.
Some factors transcend national levels - language, beliefs.
There are therefore many permutations or groups that can be established within a community, and especially within a highly rich and diversified community.
Different groups are formed for different purposes or special interests.
Different interest groups can collude with each other in other to gain power over other groups or groupings.
When an objective is achieved, the different interest groups will split up and, if they cannot dominate the situation, will then try to work with other groups as a matter of expediency in order to gain an immediate strategic advantage, before preparing for the next move.
Different basis will be used to justify their existence and to garner support from the public at large - a certain sense of justice, history, morality, environment, economics, scientific objectivity, spiritual calling - although no one factor can be considered superior to the next.
The ultimate purpose of all groups is power - political power with a view to economic power or economic power with a view to political power.
The immediate purpose of every special interest group is to prevent the other group to gain dominant power.
There is advantage in gaining dominant power - you can abuse the others for your own advantage and gain, which is sometimes also called corruption - of justice, history, morality, environment, economics, scientific objectivity, spiritual calling, depending on where you do not stand.
The fight for a race is usually championed by a foreigner who is keen to be accepted by that race as one of its members - see Kublai Khan, Kangxi, Paul, Napoleon, Hitler.
Genuine members of a race typically are comfortable with who they are - and, like all decent people, wish to consider themselves as being kind and considerate and behave kind and considerate.
But in the sphere of physical construction, there is a specific level of excellence in technical knowledge without which the construction will not be stable. This technical knowledge is the basis for the modern world that we live in today and which there can be no compromise without subsequent cost. Technical superior is lost when the best in the relevant field is not properly employed.