(Noun Plural) People who mindlessly agree with what’s been said.

Dittoheads

Had he heard what was being said? Unwittingly he seemed to be buying into it, he’d joined the rest of the dittoheads.

Come up with something no one else has.

(Noun) Rebelformity - People who think they are a rebel but conform to well established mainstream stereotypes. "He thought having a beard made him an individual, but that soon changed when he went to one of the many barbershops that had just opened"

Kathryn George