unemployed people vs unemployed

unemployed people and unemployed both are nouns.

Word	Noun	Adjective	Verb	Adverb
unemployed people	Yes	No	No	No
unemployed	Yes	Yes	No	No

As nouns, unemployed people and unemployed are synonyms defined as:

unemployed people and unemployed: people who are involuntarily out of work (considered as a group)

unemployed people (noun)	unemployed (noun)
people who are involuntarily out of work (considered as a group)	people who are involuntarily out of work (considered as a group)

unemployed people (adjective)	unemployed (adjective)
	not engaged in a gainful occupation