strawman vs simulacrum

strawman and simulacrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
strawman	Yes	No	No	No
simulacrum	Yes	No	No	No

As nouns, simulacrum is a hypernym of strawman; that is, simulacrum is a word with a broader meaning than strawman:

strawman: an effigy in the shape of a man to frighten birds away from seeds
simulacrum: a representation of a person (especially in the form of sculpture)

Other hypernyms of strawman include effigy, image.

strawman (noun)	simulacrum (noun)
an effigy in the shape of a man to frighten birds away from seeds	a representation of a person (especially in the form of sculpture)
a weak or sham argument set up to be easily refuted	an insubstantial or vague semblance
a person used as a cover for some questionable activity