No, Marx did not say that "material conditions would inspire the people to Socialist revolution." That cuts the entirety of Dialectical Materialism out of the equation.
I cannot stress this enough, you are misconstruing Marx's arguments here.
Marx said that Matter creates ideas. This is the underlying concept of Materialism. However, Marx was not simply a Materialist, but a Dialectical Materialist. You have eliminated the Dialectic from Marxian analysis and additionally added a supernatural element to Materialism in one fell swoop!
The Dialectic is a way of looking at the progression of Matter. What once was seen as a snapshot becomes more valuable when analyzed in motion.Even if people became aware of Socialism individually, the Mode of Production dictates the overarching ideology of society, and the types of ideas that take hold.
The US is additionally not simply Capitalism in decline, but an Imperialist state super-exploiting the third world for domestic super profits. This creates a Labor Aristocracy, a class of Proletarians that are reactionary because their standard of living is inflated by global Capitalism. THAT is why the US is not revolutionary. The Third World will be revolutionary before the US as it shakes off the yokes of Imperialism, a fact we can see in real life.
Neoliberalism isn't something Marx did not predict. He didn't predict the name, but he absolutely predicted the process and ideology. Imperialism was elaborated on by Lenin, but Marxism still allowed for that analysis to be made in line with Marxism.
If you take nothing from this conversation except for this, please listen to the following statements:
You are deeply misinformed on what Marxism is and isn't, and as such none of your points on Marxism hold any water. I can offer recommendations for reading, if you wish, but if nothing else I ask that you refrain from continuing to confidently misrepresent Marxism, as that only adds confusion.