The idea of Marx as a Rothschild shill…was raised as a concern by his contemporary rival in the First International, Mikhail Bakunin in 1869,[18][19] who was not even aware of the fact that Marx and Rothschild were cousins. Bakunin wrote presciently:
“This world is now, at least for the most part, at the disposal of Marx on the one hand, and of Rothschild on the other. This may seem strange. What can there be in common between socialism and a leading bank? The point is that authoritarian socialism, Marxist communism, demands a strong centralisation of the state. And where there is centralization of the state, there must necessarily be a central bank, and where such a bank exists, the parasitic Jewish nation, speculating with the Labour of the people, will be found."
I only saw the family tree that showed him related to the Rothschild's
I was surprised to see that Karl Marx was a Rothschild, never knew that.
https://tradcatknight.blogspot.com/2018/05/karl-marx-was-rothschilds-third-cousin.html