There have been anarchists that do not oppose markets such as Proudhon

They didn’t propose those markets as a way to preserve private property relations for the sake of capitalists, as you are doing.

And even those anarchists (and socialists more generally) who don’t wholly oppose markets usually want to decrease their influence, especially regarding necessities like food, water, housing, health care, etc. “Here’s how markets will fix that,” is a galaxy-brained thing for any leftist to say at this point in history.