It is the "fettered" capitalism which sucks and taxes capital out of individuals and small businesses, taking from people who work and create wealth giving it to governments and corporate/banking oligarchs.
I disagree, I think the Pope is mistaken. "Unfettered" capitalism, when it still existed, created the wealthiest country in the world by allowing the poor European peasant refugees who came here with nothing to keep the money they earned, to reinvest it to grow their own businesses.
No country in Europe including the part of Italy that was ruled by Vatican for long period of time, allowed their poorest working class people to accumulate capital and become rich, they were always taxed out of their surplus income. If that is the Pope's solution against poverty than no thanks. I prefer the unfettered capitalism. If I could only find one somewhere...