Actually Marx stole from Henri de Saint Simon who created his idea of socialism a few decades before Marx. . .and hoo-boy is Henri's idea of socialism a complete 180 of what Marx did.
When you hear Millenials spouting this B.S. keep these facts in mind. Wokesterism didn't exist before 2016. That's when it devolved out of Cancel Culture. X-Men # 1 came out in 1963. Socialism didn't exist before Karl Marx published Das Kapital in 1867 A.D. The Catholic Church was founded in 327 A.D. For 1,540 years no churches taught anything like Socialism.