Atheism and Anarchism
Atheism and anarchism are when cut down to the basics, the same thing.
Atheism is lack of belief in a god, anarchism is lack of belief in a legit government.
Both god and governments employ brainwashing. They're seen as authority figures and anything they do is considered just, because they're exempted from the common rules according to theists and statists. Both gods (especially the Abrahamic) and governments have murdered millions of people, but they're still seen as the basis for morality. God and government both command individuals' attention by using threats of Hell or imprisonment if they don't comply.
Minarchism is political deism. Minarchists believe in a minimal government, deists believe in a minimal god. Minarchists believe in the free market to provide most services, but still jump to a government to provide the basics. Deists believe in science to explain most things, but still jump to a god when it comes to the basics.
The market anarchist is for the free market providing everything, the scientific atheist is for science explaining everything (whether in the present or future).
Here's an example of strikingly similar objections:
"Only government can provide protection, nothing else can."
"Only God could've caused the big bang, nothing else could've."
So if you're going to be truly consistent with your atheism, you'd have to become an anarchist too.