Some people think that their similar looking neighbors in the country on their border belong to a different race than them. If you get on some race-conscious websites, a number of the people on those websites believe that.
The facts are different humans across the globe will behave differently under similar circumstances. If that is the definition of race, then we have number of races.
I cannot reconcile the points given as to possibilities. Biological brothers and sisters can and often do differ on beliefs and actions. Does such signify a difference in ‘race’? I can ‘see’ Dolezal’s take on her ‘race’, but I don’t understand why such defines ‘race’.