All the signs
Leftists are sure that forcing their beliefs on other Americans will guarantee a better world.
That moral certainty lets them see those disagreeing with them as too stupid to see the truth or as seeing the truth but opposing it anyway because they are evil to the core.
Morally certain they are right and their opponents dead wrong, they feel justified in using every possible means to achieve their ends, from character assassination of hated conservatives to having the IRS shatter rule of law by oppressing conservatives.
Journalist H.L. Mencken wrote: “Moral certainty is always a sign of cultural inferiority. The more uncivilized the man, the surer he is that he knows precisely what is right and what is wrong.
“All human progress, even in morals, has been the work of men who have doubted the current moral values, not of men who have whooped them up and tried to enforce them. The truly civilized man is always skeptical and tolerant, in this field as in all others. His culture is based on ‘I am not too sure.’”
Leftists celebrate and try “to enforce” their “moral values” that killing fully developed late-term babies is a sacred right, that all minority problems are caused by white racism, that conservatives deserve to be oppressed, etc.
Long ago, principled liberals taught me that skepticism and tolerance are the American way.
With their “moral certainty” and intolerance, totalitarian modern leftists, in no way principled liberals, show all the signs of Mencken’s “cultural inferiority.”