Moreover, the concept of race is outdated and deprecated in the scientific community, mainly because most people (and nations) had some influence of several of them and can't be strictly categorized as one or the other.

Cool that you mentioned Jews, because they are a very interesting case study. There is so much diversity within them that you'll never be able to tell which race they belong to. There are even large groups of black jews living in Ethiopia, Uganda, Nigeria and other countries, which is a revelation for many.