Again, Facebook absolutely has the right to censor political views using whatever arbitrary rationale they want. I just object to dressing it up with PR euphemisms such as "Standing Against Hate". They're not doing it to stand up against hate (Facebook is a cesspool of very thinly veiled hate against immigrants, for example). They're doing it for political expediency and PR.
I mean, sure. But I'm so used to FB doing the wrong thing, that them doing the right thing for self-serving reasons seems like a welcome change of pace. Maybe someday they'll even do the right things for the right reasons?
...yeah, probably not. But still.
Wait, are you thinking there are masses of people who are okay with Facebook deplatforming white nationalists that are going to be upset if they did the same to Leninist vanguardism?
The ideology itself is an encouragement to harm.