family line vs homefolk

family line and homefolk both are nouns.

Word	Noun	Adjective	Verb	Adverb
family line	Yes	No	No	No
homefolk	Yes	No	No	No

As nouns, homefolk is a hyponym of family line; that is, homefolk is a word with a more specific, narrower meaning than family line:

Other hyponyms of family line include people, house, dynasty, gens, name.

family line (noun)	homefolk (noun)
people descended from a common ancestor	the people of your home locality (especially your own family)