This is 100% ahistorical, Communism has historically served the working class and opposed fascism while fascism has historically served Capitalists and oppressed workers and Communists. Read Blackshirts and Reds.

This is nothing more than a feeling that you have, and has no basis in fact. All the worst atrocities committed in the name of communism throughout history cannot possibly compare in scale or cruelty to the actions of even a single fascist state.

In addition to the difference in scale there is a difference in motive. Communists have noble goals, but atrocities result from threat-induced paranoia and selfish opportunists co-opting revolutionary fervor. The atrocities of fascism are pure evil in both motive and action. Fascists seek to eliminate those that they deem inferior, and they carry this out with unimaginable cruelty and glee.