I hope this surge in anarchism/agorism/voluntaryism revives the reputation of labor unions. Before their co-option and corruption, they essentially functioned exactly as you described, viz. by pooling individual workers' disparate manpower to better negotiate wage rates, forming consensus about production standards and quality controls WITHOUT laws or regulations, and using community resources to manage risk and secure retirement savings without the need for bureaucratic oversight. If they hadn't been seduced by socialism, FDR, and the mob, they'd be still highly respected and might even be an acknowledged necessity of free market economies.