Race is just a very vague method of generalising large groups of humans, once that is shown to be decreasingly useful as we learn more accurate methods. As a result even the definition is vague.

These days race has mostly been reduced to vague groups of appearance; for medical/genetic groups we usually have better indicators. It is still useful as a vague appearance descriptor. We shouldn't claim that a visual description is racism, it is just a handy tool.