I keep telling you, Leftism is a Philosophy of War. The only principle they have is the acquisition of power. The object of that power exists to coerce the enemy to your will. That is all. That fully describes every Leftist movement since the French Revolution.

The Friend-Enemy Distinction necessarily comes into play when you are operating under war-footing. Enemies are not moral agents within your system. That is why it is not only okay, but a moral imperative, to kill them. That is why no moral criticism by the anti-Left can effect the Left. Hypocrisy is irrelevant because you are complaining, as an enemy, about the tactics of the Left when they have not seized all the power they are seeking. The Left has never had a coherent policy stance through it's many variations and applications through time, because they only seek the power first, then to impose their will on others.

This is why all Leftist moral criticisms from you are in bad faith. They are not holding you to their standard, they are using your standards as a weapon against you. They will use every single weapon against you because you are their enemy. If you say you won't shoot civilians, they'll use human shields. If you say you won't bribe, they'll undermine your allies with bribes. None of this effect their view of themselves because you are the enemy, and your destruction, regardless of how, is a moral imperative.

This is also why no authoritarian structure will work to destroy them or prevent them. You can only prevent them from having the capacity to make war altogether by decentralizing and individuating all power structures, and increasing a balance of terror to the highest possible point so that only voluntary interaction is even tolerable. Otherwise, they'll find another way in.