In 2021 Diaz wrote positively of The Communist Manifesto, stating that "Throughout all this time, The Communist Manifesto has continued to develop its programmatic character to the tempo of the century, with its global economic crises and great revolutions. Capitalism has been ever present in all of its diverse and voracious mutations, ready to engulf, corrupt, and disintegrate the very reality that constitutes it, but without ever being able to escape the theories of Marx and the transforming power of this text. A book that speaks to us of utopias encrypted in our present and in which beats, today as yesterday, a vital and passionate defense of democracy and freedom."