I mean, it's called scientific socialism because it uses a scientific method (dialectical materialism) to assess the material conditions of the real world.

It's also not about worshiping long dead men lol, it's about learning from their theories and experiences, then applying them to our modern conditions where they fit, and expanding upon them where they don't. Should we accuse all believers of evolution of blindly worshipping Darwin?

These strawman arguments you're making tell me that you're either A) not well versed in political history, theory, or philosophy. Or B) are intentionally slandering Marxists for the sake of it.

If the former is correct, then that's understandable, but I'll refer you to a famous quote that goes: "No investigation, no right to speak"