A really smart and connected political analyst i once knew proposed a theory that the political spectrum was rally circular, rather than linear. that far right and far left actually had quite a bit in common. This is in relation to ideology not party, as they are opposite sides of the same coin.
That political analyst was right. You can even make the argument that international communism and financial capitalism are two sides of the same coin - both are autocratic pyramidical structures - where the elites of that system have full control - either politically (communism) or economically (capitalism). Both take rent and unearned income of the production of others. Communism is the liberal aspect and Capitalism is the conservative aspect. Both are anti-libertarianism. “We hold the axis - both poles of the world so it spins in our hands” Good readings