Socialism: means of production as property of the people.
I don't see a contradiction.
There is absolutely zero compatibility between Socialism and the US Constitution. Say what you will about either - they do not work together. Come back to this completely unrealistic idea in 100 years where there's a chance that social calamity has caused enough destruction that we finally let go of our founding documents. I think the likelihood of such an outcome is extremely unrealistic, though.
Yet you say that "there is absolutely zero compatibility between Socialism and the US Constitution", so perhaps you're thinking of one of the other amendments or some such? Perhaps something involving the protections on property.
Socialism doesn't require that the decisive nexus of power be the national government. Socialism as a model could still take root with the main nexus of public action being at the State level.
Also the expansion of the commerce clause "the switch in time that saved 9" also contributed when used in concert with the 16th amendment see
Even _if_ the courts upheld that point of view, you must keep in mind the incredibly contentious situation that surrounds the ratification and the enforcement of the 16th amendment and its various precedents set. Using such a weak and explosive justification for the implementation of socialism in the US will lead to the most intense political battle ever witnessed by citizens of our declining nation.
Also see how Bernie Sanders plans to use the income tax in his plan to raise max rates to 73% to accomplish wealth redistribution.
> because you cannot have socialism if wealth is not distributed in an apportioned manner
States are fully capable of re-distributing wealth.
Socialism never took root exactly because of what Steinbeck alludes to. Cultural incompatibility.
The reason "socialism" never took root in America is because of the way our Constitution separates political powers. Socialism is 100% incompatible with the 10th amendment because you cannot have socialism if wealth is not distributed in an apportioned manner. If States get the authority to legislate on all matters not explicitly defined in the Constitution, then there is no way for socialism to take hold in the US.