https://www.youtube-nocookie.com/embed/Z7CUHIUVsNo
See also:
Common Objections to Capitalism by Timothy Terrell (video lecture)
Further reading:
Egalitarianism as a Revolt Against Nature by Murray N. Rothbard (Chapter 1 in Egalitarianism as a Revolt Against Nature, and Other Essays)
Freedom, Inequality, Primitivism, and the Division of Labor by Murray N. Rothbard (Chapter 16 in Egalitarianism as a Revolt Against Nature, and Other Essays)
On Equality and Inequality by Ludwig von Mises (Chapter 14 in Money, Method, and the Market Process)
Inequality of Wealth and Incomes by Ludwig von Mises (Chapter 9 in Economic Freedom and Interventionism)
On Appeasing Envy by Henry Hazlitt (Chapter 12 in The Conquest of Poverty)
Envy: A Theory of Social Behaviour by Helmut Schoeck
The Ethics of Redistribution by Bertrand de Jouvenel
Anti-Piketty: Capital for the 21st Century edited by Jean-Philippe Delsol, Nicholas Lecaussin & Emmanuel Martin
Piketty’s Capital: Wrong Theory/Destructive Program by George Reisman
Thomas Piketty on Inequality and Capital by Hunter Lewis & Peter G. Klein
Piketty's Capital and Actual Capital by Randall G. Holcombe