The state (could and idealistically) be the will of the people via proper democratic systems. It's just that right now most aren't that democratic, and unelected corporations have too much influence. (So under capitalism, I do think actual democracy isn't super meaningful)
I think if you want to have a functional civilisation (rather than just small communes, which with today's population is a pipe-dream) you need some kind of taxes, and now we've already arrived back at needing a state.
Collective spending is required for a civilisation, end of story. Anarchy is never going to build continent spanning infrastructure, ever.
Someone trying to accumulate wealth or power is going to ruin it for you. Sold you food with lead in it? Okay, what are ya gonna do about it? At a small, community scale this is easy, at civilisation scale, forget about it. You need some court system.
If you want to go live in a commune, be my guest, that's the only place anarchy can work.