Can there be anyone left who does not think Trump is a complete moron. He has spent the last two years stirring up division, bigotry and factional hatred and now blames the press for the result.
Certainly Trump is the best US president since Reagan, would you care to refute that and name someone who was better, giving the reasons why you think so?
Trump is clearly not the only person in US politics who has amped up the level of rhetoric, but he's probably the one to embraced it the closest -- most notably, leading chants of "lock her up!", with reference to Hillary Clinton.
It would have been nice to maybe see him take responsibility for his own part in driving anger levels up lately, but I suppose that was always a fool's hope.
And Trump too. But out of him and the three sources that you name, only one is President, with therefore the chief responsibility to keep the US actually United.