Most areas don't have co-ops because not many people are willing to do a ton of work and not get any benefits from it. This is why capitalism works so well... Entrepreneurs take a ton of risk and do a ton of work and sometimes get windfall profits from it.
The big food retail coops in the UK are in most respects supermarkets like any other. The people doing the work get paid, and they're as capitalist as any other business that doesn't list equities on a stock market.
