Reality is bigger than you, & reality created you. Reality is God. Those who deny reality wind up destroyed by it.

Selling your labor to an employer does not make him your master. You are free to sell your labor elsewhere at any time. If your knowledge & skill are highly valued you get to set the terms. I basically only accept work when it's stuff that interests me.

But "no gods; no masters" sounds perfectly compatible with the purer conceptions of communism. Communism only doesn't work because collective decision making doesn't scale. And because hierarchies in knowledge & skill & as a result of differing risk tolerances & different levels of ability to motivate & organize people are natural & inevitable with free trade. Once you accept that voluntary hierarchies will exist & decisions have to be made by individuals, then you're an ancap.