Original sentence: It was a Marxist critique of American capitalists of the late 19th century who, he argued, believed in a dog-eat-dog sort of ferocious competition endorsed by Social Darwinism as preached by William Graham Sumner
Edited sentence: It was a slashing Marxist critique of American capitalists of the late 19th century who, he argued, believed in a dog-eat-dog sort of ferocious competition endorsed by Social Darwinism as preached by William Graham Sumner