How do you make efficient decisions and coordinate actions against an enemy who has decided that hierarchy allows them to wage war more efficiently and effectively.
Anarchy hand waives away so many critical problems. It seems like a different flavor of libertarianism.
I have a casual belief that anarchy is an ideology pushed by foreign interests (Russia in particular) namely to cause chaos and prevent institutional investment from otherwise liberal people. Institutions build power and power can be used for good or bad. Societies operations depends on good people getting into positions of power out of a sense of responsibility, rather than bad people getting into power out of a sense of ambition.
Politics is largely an idea of how the game prisoners dilemma should be played. Libertarians and anarchists alike believe in an "always cooperate" strategy because "defection" is not a wildly different concept than domination. To defect against someone who cooperates is to dominate them. These ideologies take the stance that no one should be able to dominate, but fail to properly account for those who will choose to try to dominate anyway. These ideologies fail because no matter how much anyone wishes otherwise, might is the ultimate arbiter of disputes and participating in a hierarchy makes you, in the aggregate sense, stronger.
This means it is a somewhat a fools errand to fight oppression because it assumes a position of less power. One must be able to oppress and then choose not to. Then you run into the greater problem of if there are no consequences for you because you are able to oppress, why should you be bound by an ideology that inhibits you?
The biggest problem any anarchist faces is that they think they need to fight the police rather than become the police. An ideologically consistent anarchist should be on the police force exercising their individual power against those who try to dominate others and changing the culture of societies enforcers from within rather than thinking they can fight it from outside.