“If we would explain the blind acceptance of Communism by so many thousands of workmen, we must remember that the way had been already prepared for it by the religious and moral destitution in which wage-earners had been left by liberal economics.”
Pius XI, Pope. DIVINI REDEMPTORIS On Atheistic Communism (p. 20). Kindle Edition.
https://en.wikipedia.org/wiki/Classical_liberalism
https://en.wikipedia.org/wiki/Economic_liberalism
https://en.wikipedia.org/wiki/Libertarianism_in_the_United_States