I read recently an article by Trent Horn and Catherine Pakaluk (Jan 16, 2020) 'Can a Catholic Be a Socialist? with the conclusion ‘not only are Catholics not obligated to be socialists, they—we—cannot be socialists’. I respectfully disagree with this conclusion, as it depends on what it means to be a Socialist and many good Catholics, myself excluded, would claim to be Socialist.
Christian Socialism claims to be based on the teaching of Jesus and we read in the Bible ‘The community of believers was of one heart and mind, and no one claimed that any of his possessions was his own, but they had everything in common (NAB, Acts 4:32).
Condemnations of Socialism from those in the US often seem to Europeans to be based on politics, not religion.
The arguments between capitalism and socialism often are influenced by the differences between Catholics and Protestants, where Catholics tend towards community, fellowship and the unity of the faithful while Protestants tend towards individualism, the self and personal commitment to God.
American is based on Protestant/Calvinistic/Puritan individualism.
O beautiful for pilgrim feet
Whose stern, impassioned stress
A thoroughfare for freedom beat
Across the wilderness!