Insane fury is, in fact, a component of the Left's tactics, a showy form of self-righteous virtue declaration. That in turn is a consistent part of Class War, and the identification of friend vs foe vs necessary victims.
The "class" issue was responsible for the elimination in France, 1791, of the feudal system. The proposition of a compromise within which both a monarchy and in which a free people could exist, caused the revolution to begin. By 1793, the Left had taken control, and the Reign of Terror began.
And that recalls the original "Left" from the "virtuous" massacres by the French Public Safety Committee's guillotine. Called the "Reign of Terror", the terrorist government of the French Revolution went around France executing their known enemies as well as suspected enemies. The concept of "Leftism" was born in totalitarian massacre of its own people, those of France. And it was justified in the term, "public safety": no one could be "safe" until all of the enemy were beheaded. What could be more virtuous?
So from that start and through the following centuries, the French Revolution and its "virtues" became icons for leftist revolutionaries world wide.
As he sought to measure progress of the Russian Revolution, Lenin often compared it to the Great 18th Century French Revolution. Speaking to a congress on adult education in May 1919, he said, "Take the great French Revolution. It is with good reason that it is called a great revolution. It did so much for the class that it served, for the bourgeoisie, that it left its imprint on the entire nineteenth century, the century which gave civilisation and culture to the whole of mankind. The great French revolutionaries served the interests of the bourgeoisie although they did not realise it for their vision was obscured by the words “liberty, equality and fraternity”; in the nineteenth century, however, what they had begun was continued, carried out piecemeal and finished in all parts of the world."And what class does the current Leftist serve? Claiming blacks, women, and many previously defined mental disorders as Victimhood Classes sounds virtuous to those who need such a class for political gains. From that start the Left has not proposed to ever equilibrate such minorities successfully into assimilation, but to forever use them as unequal, incompetent, unable to compete with whites - who succeed only due to the massive, racist, (etc) monolithic cultural machine which is perpetually devoted to suppression of non-whites. Forget that many of those minority members do, in fact, enter the machine and succeed without the help of the Left. (Help from the Left results in "tokenism" which works against all minority members).
"Everybody who studies history seriously will admit that although it was crushed, the French Revolution was nevertheless triumphant, because it laid down for the whole world such firm foundations of bourgeois democracy, of bourgeois freedom, that they could never be uprooted."
The Declaration of the French Revolution made in 1791 on the Rights of Man and the Citizen was quoted later by the revolutionaries of Vietnam, including Ho Chi Minh, when they made their own "Declaration of Independence from French colonialism in 1945.
Lenin emphasized that in Russia they had carried the process of revolution a big step further: "In a matter of eighteen months our revolution has done ever so much more for our class, the class we serve, the proletariat, than the great French revolutionaries did."
A blatant example of non-intersection is the RadFem refusal to accept either transwomen or black women. And the current war on whites and "whiteness" is the removal of any commonality of euro-americans with any/all Victimhood Groups.
There is no common Venn area of intersection for the cultural stability needed to provide peace/opportunity in the populace and a common worldview, provide a set of common objectives, and provide conditions for the treatment of individuals.
Disagree? Then list the areas which are common to both the Left and Right. And forget things like chocolate and puppies; I mean actual political/cultural and personal development issues.