Hello I'm trying to write a paper. Does anyone know what were the similarities between Carl Marx and Du bois theories ?

They are all fantasy so yes

In the end all these theories when put into practice, kill, murder and impoverish.

Hence USSR murdering 30,000,000

China 70,000,000

Vietnam tens of thousands murdered millions impoverished

Cuba thousands murdered, the whole Country impoverished

Venezeula on the point of Starvation

The list goes on

There are no successes

The true Socialism led to Stalin allowing 30 million to starve attempting to bring in agrarian reform and the removal of Money (Capital) from the system, result impoverishment

China same story with Mao, wanting true Socialism making people go back to the land and farm, plus removal of money from the system, result Impoverishment. Note in 1979, China dumped the Socialist idea, copied Hong Kong (The then British Capitalist colony) and has not looked back since

Marx knew nothing about Economics, his whole n=matra was absed on the stupid idea as the rich get richer the poor become poorer, absoulte tosh so all his ideas are absed ona falsehood

We are all richer than we were when Marx wrote that Economic fantasy?

Read Adam Smith Wealth of Nations for how Economics actually works

Yes, many people know that, and if you read books by and about "Carl" Marx and Du Bois, you too can know that.