Wiggs is right, "the communists are coming" exposes someone as a complete retard. Does it even work on anyone except boomers?
From a persuasiveness rhetorical standpoint, you're right. Saying "communist" or "socialist" just doesn't mean anything to the under 40 crowd the way it does to the over 40 crowd. Voters, however, are overwhelmingly over 40, especially in midterms, 65-70%. To them, these terms are proxies for not just their strict economic definitions, but everything that is bad and wrong in the US, DEI, gender ideology, trans lunacy, intersectionality, Abolish ICE, Defund the Police, and free shit army, etc.
Surprisingly, US Jewish voters still vote overwhelmingly Democrat, we'll see if this changes this time. In 2024, the Democratic Party hadn't gone so anti-jewish.