I really have a hard time understanding it. Before Karl Marx complain that workers should get full benefit of their labor rather than having to share it with politicians and land owners.
Contemporary capitalistic society is close to that. Look at Mark Zukenberg. He started as a poor student and become billionaires by working on his start up. That seems like pretty pro workers system to me.
Capital owners that buy Mark stocks actually lost money. Capital owners have to take huge risk or accept very low return now due to abundance of capital. Capitalism is ironically far more friendly to workers than capital owners.
Some of what Marx write is correct though. Marx says that capitalism has improved humans’ standard of living, true.
Marx complain about money from workers are taken and given to political power and land owners. True. Currently workers pay income tax, the money is taken and given to corrupt officials and building infrastructure that raise market value of privately owned land. Not sure why Marx hate capitalism because all those are done under pretext of socialism.