I’m better, teehee
You’re acting like we, as Marxists, are starting from scratch and basing ourselves on nothing but guesswork. No. There are real, tangible, obvious trends in society, as in life in general. You’re making the same confused argument Jordan Peterson does when, in a Joe rogan interview, he says “we can’t predict climate change, climate just means everything and there’s no way to account for everything.” We don’t need to predict everything; not everything that influences a person does so to the same degree. Class interest influences people in a massive way, we see this most obviously manifested in what people from different classes view as ideal. The bourgeoisie has their free market, individual liberties, etc. In short they wish to roughly maintain the present or the recent past, that time in which their mode of production was most dominant. The petty bourgeois has their decentralisation, their small commodity production, etc., in short they wish to turn back the clock to the very beginning of capitalism, when their small commodity production was still predominant. And the proletariat have abolition of private property, equality, community, etc., i.e. communism, that mode of production in which the proletariat becomes dominant, universalised, and in that action it abolishes itself.
I wonder what those genius theoreticians did? Oh right! They analysed historical evidence, the material furnished by the natural sciences, production and how it developed, society and its laws of motion and even language at times. Additionally they analysed the goings on of the present and transformed that into practice, practice which merely furnished proof of their correctness! How about you actually read Marx? Maybe try basing your understanding of Marxism off of more than 2 pages that were written as a quick, but useful, polemic! Engles himself has analysed the class character behind the desire for decentralisation in more depth, try The Housing Question!
Just ignore all of the analysis of all the genius theoreticians. It’s totally just him saying “trust me!”