The only way in which communism is inherently authoritarian is in that wealth must be forcibly taken from capitalists and landowners in order to help the masses.

Equating communism with authoritarianism, but not doing the same with capitalism, a system in which the owning class oppresses (to the point of homelessness and starvation) the working class, is simply ignorant.

There is oppression under this system as well, there are private prisons that lead directly to incarceration, there is gross inequality, there is global injustice (forced extraction of wealth and natural resources from foreign lands), there is climate injustice in which a tiny minority of the population is directly causing harm, suffering, and an increasing amount of climate refugees (to which they deny entry after making their homes unlivable).

but yes an economic system that puts the needs of the many above the lavish lifestyles of the few and which prefers cooperation to competition is inherently authoritarian and this one isn't. How many terrible capitalist countries can you name?

Capitalism only works in theory.