[@Eschatologist]
Human looking youkai aren't going to be the same as Ikkime and Eleanor, so types of youkai quite literally are made dozens of way because there are so many different types, there is literally no norm when it comes to Youkai

Youkai aren't all smart, big "governments" wouldn't work because there is no one person or group that would be able to gather the youkai to that level, there are powerful youkai, that will be revealed to plot, and even they only have so much power over other youkai, youkai aren't a being that would follow a government control, at all

Yes some are, it's made every where from certain youkai that focus on making stuff like that, i never said is was without society, it's without government and rules, there are peaceful youkai and crimson world areas that are peaceful.

I'm gunna leave KoL to answer this last one.