protester vs social reformer

protester and social reformer both are nouns.

Word	Noun	Adjective	Verb	Adverb
protester	Yes	No	No	No
social reformer	Yes	No	No	No

As nouns, social reformer is a hypernym of protester; that is, social reformer is a word with a broader meaning than protester:

Other hypernyms of protester include crusader, meliorist, reformer, reformist.

protester (noun)	social reformer (noun)
someone who participates in a public display of group feeling	a disputant who advocates reform
a person who dissents from some established policy