What if i told you that marxist theory is not some isolated idea from a random guy but the conclusion of a scientific analysis of economic history through the lens of dialectical materialism, and built on top of the works of many other people?

An easy way too look at it is that marxism is for economics what darwinism is for biology.

The best read on this is "Dialectical and Historical materialism" by Stalin.

As marx put it, the only way capitalism would survive is by keeping an infinite growth. Tech is a prime example of that phenomena, where new needs are being created out of thin air: subscriptions, software, etc... Cars, phones have begun to be necessary. That's how capitalism survives still today: growing more and more by creating new needs for the individual. Except this growth is at the expense of finite ressources, and this is where we're gonna hit a wall.
Maybe this explains we haven't seen a capitalist collapse yet. But with today's ecological concerns, it seems closer than ever