Even if we still had a generally high trust society, the 9/11 narrative has many holes, and many people are aware them. At the “next happening” all these people will have immediate doubts.
This may not hold jews back from trying though. Everything they’re doing is falling apart. Ukraine, the domestic economy, muh israel, and they don’t seem to have any good new ideas. They may just try to force the old idea of a false flag but with moar cowbell propaganda.