Well, then, let us away with torch and hoe and bring down the tyrant! (Not.)
Expressing outrage and declaming censure is what we in the Cheap Seats can do about the issue. This is how our displeasure gets communicated to organisers of events like WorldCon, so that they can take measured and concrete steps to kerb this misbehaviour. Anything else is the pervue of those committees and those on the receiving end of the offensive conduct.
-- Steve's not a big fan of "calls to action" against individuals, as such calls tend to end in damage to innocent parties too.