The counterclaim that Karl Marx was likely to have used to support his argument was that everyone should be equal which was his way of supporting socialism.
This refers to the rebuttal of a claim by providing counterarguments and supporting details to prove that the original claim was incorrect.
Hence, we can see that Karl Marx wanted to persuade his audience about the dangers of capitalism, and he made use of the claim that abolishing class supremacy will promote the development of all to show that everyone should be equal.
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