you assume incorrectly. anarchism writ large is a very broad tent, but in modern times a pretty big majority of anarchists believe no state should exist. there are absolutely attempts by anarchists to create governance structures, and unfortunately those anarchists tend to dominate mainstream sources of information like YouTube. you cannot trust popular online content creators who call themselves anarchists to represent anything but a small fraction of mainstream-acceptable anarchisms. most of us are far more radical than they are.
for instance look up youth liberation if you want to see how your assumptions in #3 are erroneous.
how good is the Yacy node at getting useful search results?