Anarchists see state control as no different than private ownership control. Obviously this is not true, but we as communists know there are dangers to this kind of unchecked power. Ceausescu in Romania, for instance, and Pol Pot, we’re both different kinds of horrible for their people, although I’d argue that Pol Pot and his regime were communists in name only and did not really understand what Marxism was, and Ceausescu had no intention of being anything but a dictator who had insane ideas about building cheap televisions for the west and being the Romanian Mao Zedong.
That being said, anarchism is not a coherent ideology for the reasons you said. There needs to be hierarchies for dispute settling and a system for managing the economy and the direction of it at large. Also for things that are not profit motivated (or shouldn’t be) and are necessary in our society.