Businesses that can't stay afloat without underpaying workers have a failing business model. Blaming unions for their eventual demise is foolish.
Communism and Capitalism are actually quite similar in a sense. Neither of them works well in their purest form, both lead to formation of an oligarchy (party elite,billionaires). Most livable countries in the world mix them in form of free market social democracy.
>Businesses that can't stay afloat without underpaying workers have a failing business model.
Yet companies have flourished under that model for decades/centuries. Employers and governments have plenty of levers to make sure workers have no choice but to work while being underpaid.
Sure, but you say that as though the union is only representing underpaid workers. In many cases they represent overpaid workers.