So... what you're saying is that when someone punches you, the right response is to curl up into a little ball so it doesn't hurt as much? You certainly shouldn't punch back or call the police or something.... right? Or were you trying to imply something with that "private organization" comment that I missed? It's the American government's job to protect not just itself, but all Americans and American interests from foreign powers.
I read a suggestion that the Russian election hacks were more about sowing mistrust in our elective process, and the resulting chaos and dysfunction in the American government, than they were about supporting Putin's cheerleader. If that's the case then I wonder about those voting machines that so many states use... I can think of a few possibilities, but the easiest might be to just tamper with just one or two machines in a really obvious way, so that people notice and question the legitimacy of all of them. This would possibly force a reelection, but would more likely just split our already bitterly divided electorate - people who supported the winner(s) would say that a reelection wasn't necessary, since there's no evidence that the hacks were widespread enough to actually accomplish anything. And people who supported the loser(s) would declare that the election wasn't legitimate.
Russia could go further than that if they really were out to support specific candidates, but keeping the hacks small scale allows them to retain plausible deniability.