I think you are creating a strawman. One does not have to approve of the CIA to think that they are correct. Indeed, if one believes the CIA and NSA are adept at collecting intelligence on the American people, it follows that they might also be good at collecting it on Russia. There does not have to be an "alliance" to agree on established facts.

Indeed, I would argue that your point that if one disproves of CIA tactics that everything the CIA says or asserts is now somehow in question is probably more "tribalistic" than viewing data and agreeing on facts. That smacks of conspiracy theory.

Whether or not this makes any of this true is another story, but tribalism is a bad response.