I don't think that these kremlin bots are rooting for any particular side,
It's a crazy world out there, the Russians are succeeding.
Dude read the 38 page indictment of the GRU national that had a 35 million USD budget to attack the left. The attack is completely targeted at getting the right pissed off at the left. If you think a dictator paying for propaganda is spending it on a fair attack on both sides you're crazy bro, they have a real interest in having as hard right a leader as possible as POTUS.
But you're 100% right it is working and has been since at least 2016!
To the OP I don't think any of the IRA bots are actually here, not enough bang for their buck.