But... "those commie bastards: DID try to infiltrate every level of the government. Just as we were trying to do to them. They successfully stole enough secrets about the manhattan project to get the bomb themselves far faster than we did. This lead of course to a potentiall civilization-ending situation that hasn't been completely resolved.
Of course the paranoia got absurd. Worrying about commies infiltrating (gasp) HOLLYWOOD to BRAINWASH OUR CHILDREN INTO BECOMING COMMIES THROUGH MOVIES was idiotic on the level of worrying the gays were trying to turn all our children gay. And yes, there's no evidence russian hackers influenced the election to an appreciable degree. I think that's wildly optimistic: America wasn't tricked by evil russian hackers, we really are just so stupid that we left the electoral college system in place and millions of voters really were that stupid that they thought HRC was the corrupt one.
Still, it's an even dumber false dichotomy to conclude "We're safe from the russians forever." The russian connections are damaging the integrity of the presidency and faith in democracy. The russian hacker conspiracy theories are a lot more fucking realistic than the conspiracy theories about Obama being a kenyan muslim. The obama conspriacy theories generated anger that helped lead to a raft of congressmen who were put there just to shit all over anything Obama or liberal related. The same thing can happen to the liberal majority of the country.
In a few years if liberals elect a wildly unqualified and eratic president, say Kanye West, and actually DO declare a real war on coal, religion, and guns, and conservatives protest this is unfair, and liberal congresmen sneer back "Why don't you hve your russian hacker friends do something about it," those of us on the left might take some joy out of seeing the situation reversed, but it's still going to be damaging.
So yes, this shit does matter even if you think you were right before.