Green’s Dictionary of Slang

stupid or robotic people; fundamentalist Christians; thus podspeak n., meaningless talk.

1988		Eble Campus Sl. Oct. 10: the pod people – fundamentalist Christians and their organizations; mostly derogatory: The pod people tried to convert Tom yesterday.
2003		Olympian 5 Sept. 🌐 I don’t want to scare anyone, but we’ve been invaded by the pod people. All those folks outraged by the duplicity, subterfuge, outright lies and those dogs wagged by tails in our last administration have been replaced by folks, eyes glazed, who just smile and nod approvingly, whatever this administration says.