That's the job of every individual person, and "individual mileage may vary", as you Americans like to say.
However, there are some things that are quite apparently wrong and the vast majority of common people have no trouble recognizing it. It's our elites and their pitiful brainwashed followers who have a problem seeing the plain evidence of their own eyes.
So, the elites are evil? And everyone gets to point fingers and proclaim whatever they like evil?
I mean, geez, if we're talking about real, bonafide evil here -- Hitler, etc. -- then let's just lock all the elites up.