folks vs kinship group

folks and kinship group both are nouns.

Word	Noun	Adjective	Verb	Adverb
folks	Yes	No	No	No
kinship group	Yes	No	No	No

As nouns, kinship group is a hypernym of folks; that is, kinship group is a word with a broader meaning than folks:

Other hypernyms of folks include clan, kin, kin group, kindred, tribe.

folks (noun)	kinship group (noun)
your parents	group of people related by blood or marriage
people in general (often used in the plural)