Right and left is taken from the French revolution. An official hearing was held and the majority poor people who wanted a better life ended up on the left side of the room, and on the right gathered the minority rich people who had that better life. One witness explained: We began to recognize each other: “-those who were loyal to religion and the king took up positions to the right of the chair-.” This was after and largely inspired by the American Revolution, which would have failed without the support of the French Navy. The French were not supporting any idea of freedom but simply trying to hurt their old enemy the English. That success would ultimately lead to the King of France marching to the guillotine.
Though America would succeed in creating a functioning democracy, France would not and in the decades after The Terror become the birthplace of the most radical utopian political ideology in history: Communism. The left is often associated with this later development but in fact is only about the original event on that side of the room. The right would come to be associated with another radical political ideology from over a century later: Fascism. In America the left and the right are attractors to that precursor of communism called socialism and the enabler of fascist dictatorships which are the super-wealthy. A good principle to follow is that while The Terror and The Holodomor were bad, The Holocaust was the worst.
As I once told a coworker who was arguing with me about Trumpism, “if I am walking down the street and I see people on the right with swastikas and confederate battle flags and people on the left with Antifa and Black Lives Matter flags….I am going to the left.”
Ice on the Moon 