This event has shown that there are far too many who are simply incapable of doing that.
Expecting such a rapid mental transformation in such a short time frame is asking for the impossible and is also, IMO, wishful thinking, as has been evidenced if you've been following the issue for the last week.
You are right about “far too many.” I think much of the reason is that the “far too many” are not paying close attention to the issue.
Maybe the important lesson learned is that those who are paying attention can learn from it and be better prepared to rapidly react in a way that will bring out the facts as quickly as possible. Maybe we can learn to do that in such a way that those who are only marginally watching will more easily be able to see the whole picture and not just the tempest in a teapot that is the triggering event.
(I’m confident you are one of those who can help with this. Obviously a clear thinker.)