There's much more at play than just "cooperatives are not any better". Cooperatives don't get as much funding from investors because investors won't be owning a larger share of them, and taking their returns, they instead invest in a traditional company because then they can extract as much as possible from their investments.
That by itself already puts small scale cooperatives at a competitive disadvantage, you can't raise as much capital as the non-cooperative startup, even if their product could be better and their employers could be happier the lavishly monied startup will try to outcompete them by throwing money away until they get a larger share of the market.
If somehow this situation was improved where cooperatives are not immediately disadvantaged from an earlier stage we could see more of them popping up, right now there's not nearly enough cooperatives for this comparison to be possible, simply because they get extinguished by others with more capital.