Supposed indeed. But in the US, the top tier of said people is also heavily political and partisan.
Anyway, the rule of law quickly becomes irrelevant when something takes over by force. Currently Myanmar is controlled by a military coup, for example, and there was an attempted coup by civilians in the US not too long ago (while the legal and military branches of it stood by and did nothing)
But yes, law people sometimes forget that it's all words on paper.