I myself think that religion and culture are much more relevant to the nation than race and eugenics. But taking care of the nation and promoting body health are closely related to eugenics in my view. It's not so much about glorifying race but promoting the vital health of each person.
Accepting outsiders with different values and culture can be terrible for the national identity and is a source of conflict. This is the reason why libertarian and multicultural values are promoted so badly in society. They destroy language, ethnicity and culture in the long run.
there doesn't seem to be anything here