RE 1: yes, but it’s a matter of degree. Technically every scientific theory is somewhat unfalsifiable (you can always invent saving hypotheses). But some are more falsifiable than others (some lend themselves to saving hypotheses, don’t make clear predictions in the first place, etc.) so falsifiability is still a useful criterion of theory choice. Likewise here with IB and needless jargon.
RE 2: This may just be my current writing style! I appreciate any constructive comments on how it might have been phrased better.
Point taken and edited accordingly.I knew there were more than two possibilities, and didn’t say the two I highlighted were the only possibilities for that reason. But I concede that the original wording unnecessarily suggested this.
Appreciate the feedback—and have edited that section accordingly to refer to Antifa only, versus BLM.
My impression with them is that they have deeper historical roots than BLM, though their emergence into public consciousness is probably much more recent.