McCarthy built such a machine in the `40s and `50s. Started with Communists, then Communist-leaning views, then Socialist views, eventually expanded to include homosexuality. Victims lost their jobs, were blacklisted from their industries.
Are you seriously drawing parallels between revoking an invitation for a sitting member of congress, and McCarthyism? Do you not understand the difference in power dynamics at play here?
@kyle what drama did I miss?