Fascists aren't morally healthy humans. Authoritarians can't cope with social reality, where different people can have different opinions and loyalties and yet support each other. They always seem to end up succumbing to patriarchal cults, where Lenin-Hitler-Mao-Trump gets to do whatever he wants to your sons and your daughters, and you and your working class have no recourse.
Remember children, anything authoritarian (especially when talking about the left) is now "fascist." This totally isn't a maneuver in the right-wing fascist playbook to water down the term "fascist" to push for greater acceptance in the idea of fascism in the general public that we're seeing today.
...Dude. Do you want to, I dunno, read about the purges of loyal communists by Stalin in the 30s and 40s? Can you explain to me how that's significantly different from the Night of Long Knives?
Well obviously one was done by fascists and the other was done by communists.
Comparing two really different ideologies with just one aspect / event and saying they are essentially the same is not really the way to go. Coming from a country that has a history with liberal capitalism, state socialism/communism and fascism I feel like its really unsettling how you are throwing together the different ideologies.
Communism and Fascism are really different in as many aspect as they are similar. Especially because fascism and communism both really vary from the specific context they got to power. Like fascism in austria was different from fascism in germany or communism in china is different than it was in poland.
I you want to talk about how they got to power, well, fascists usually got there by votes, and communists by revolution. It's rare--but not unheard of--for a communist gov't to be voted into power.
But the end results end up being remarkable similar; they're both dictatorial, and both use state-sponsored violence to suppress or eliminate competing political ideology. (I want to be clear that I'm not talking about Marxism specifically; Marx was opposed to the existence of a state. Lenin, Stalin, Mao, Castro, et al. were authoritarian.) As long as you are part of the political in group, you're golden. Once you're out, you're an enemy of the state.
He got into power through the Bolsheviks however. A wolf in sheep's clothing. There was similar with the Nazis in Germany, but I see that more as left wing infighting making them blind to a far right threat.