Looks like subversion was largely aimed at red communists, from a cursory reading. So fight the bill, then once the bill is stopped, demand that questions be answered in regards to motives, and where those motives come from.
- The United States is in a heated and severly polarized political state, so it would not suprize me to find the old "party" (or something very similar with a modern twist) trying to poke it's head up again. Some research in to the 1920's American political scene will show a suprising acceptance of the red-communist party among many in the entertainment industry, i doubt it's philosophy entirely went away.
- It is curious indeed.