I tried posting this to /r/AskPhilosophy but it was removed, I guess because it wasn't specifically about philosophy.

I am reading 'The Three Body Problem' by Liu Cixin. In the first chapter there is a back and forth during a 'struggle session' which I can't fully understand. The character of Ye Zhetai is accused by his wife, Shao Lin, and several of his students, of anti-revolutionary teachings, in particular teaching the theory of general relativity. Shao says,

"...This is most apparent in general relativity: Its static model of the universe negates the dynamic nature of matter. It is anti-dialectical! It treats the universe as limited, which is absolutely a form of reactionary idealism.…"

One of the male Red Guards says,

"You also taught the big bang theory. This is the most reactionary of all scientific theories."

Shao also says,

"You have often lectured students on the reactionary Copenhagen interpretation of quantum mechanics." [...] "This explanation posits that external observation leads to the collapse of the quantum wave function. This is another expression of reactionary idealism, and it’s indeed the most brazen expression."

I have an okay-ish understanding of General Relativity, the Big Bang and the Copenhagen interpretation of QM in the early 20th century. But I have very little knowledge of the philosophical terms used in this part of the book. Could anyone explain (as simply as possible for a layperson) how the revolutionaries in China saw these things as being so diametrically opposed to their philosophies?