He takes a really long time to get to the point, but ultimately gets to it - wage labor is a form of slavery. The "workers" are really the one's responsible for the products, and the difference between their wages and the profit from the products is somehow stolen through the arbitrary owners of capital. This is just rehashed Marxism, and necessarily ignores all of the arguments against Marxism - specifically that the labor theory of value is invalid. It's really an effect of the Dunning-Kroger effect, people with no understanding of business and economics don't understand the great deal of skill involved in capital investment, management, and so on...so they assume the large salaries of these people are unearned. A free market system actually allows for a Democratically run Corporation, but you don't see this model because it is dysfunctional. Management and effective business decisions are real, specialized skills, and if you just have factory workers and janitors vote on these decisions, it is not likely to work out well. Also, ownership entails responsibility - ownership of debt, liability for damages, responsibility to the consumers, and so on. Many people would prefer a paycheck to these responsibilities. I have heard some Socialists argue that the Spanish Company Mondragon is an example, but I don't know a lot about it.
The last thing I would say is, any "critique of capitalism" that fails to acknowledge the massive interventions in property rights and free trade that is rampant in every modern Western democracy, is fundamentally ignorant or dishonest. Govt spending in the US is nearly 40% of GDP, Debt exceeds GDP in this and many other countries, Taxation is nearly half of many peoples' incomes, Central Banks constantly interfere with the market, and every business has thousands of pages of regulations to overcome. But the real slavery, they tell you, is selling your labor for a wage, when you can renegotiate or leave at any time. Gimme a break.