PallasRiotRobert Mueller's cowardice and ineptitude makes a lot of sense when you learn that he built his life around chasing the high he got from butchering Vietnamese resistance fighters when he was a kid
Marxist material analysis is important, but the superstructure does feed into the base and so cultural analysis is also useful. It's worth observing that the US Republican party is an organization of morally weak men, honestly much more so than even the Democratic party. It is just fundamentally true that the cultural milieu of US Republicans, from voters to politicians, is overwhelmingly made up of authoritarian followers, fueled by personal grievance and a fear of being perceived as abnormal. Mueller's cowardice and failure to meaningfully go after Trump makes a lot of sense in the context of him being a Republican, not because he seems to have been compromised by party loyalty but rather because his lifelong political identity and sense of self was wrapped up with organizational moral decrepitude. His instinctual genuflection to power is inseparable from that lifelong identity as an authoritarian follower.
Mueller spent his formative years murdering people in Vietnam, eventually headed the FBI through a period of a deranged, obscene terror campaign waged against American Muslims, and eventually was entrusted with one of the most important investigations in modern US history where he ultimately balked at actually making any real challenge to Trump even after he knew beyond a shadow of a doubt that Trump is an international gangster. It's an altogether kind of predictable trajectory for a Republican, the kind of life of total moral failure and crass worship of power that one would expect from them. The man who couldn't figure out that the US' actions in Vietnam were criminal, and who oversaw developmentally disabled Muslims getting coerced into participating in FBI run fake terrorism plots, that's just a normal Republican, they're all like that. Any of them would do the same, that's the culture. That's the ideology that someone who identifies as Republican is signing up for on purpose.