I would say that was pretty much confirmed when Madam Hillary Benghazi declared us "A Basket of Deplorables" to the cheers of her moronic followers.
That wasn't snobbery and looking down their noses. The "Deplorable" line, along with beloved entertainers openly advocating for the destruction of the White House and the President, and "antifa" openly encouraging "scalp-hunting the fascists", forgiving and ignoring any motive for the Virginia baseball field assassination attempt, etc etc etc, is all part of the very intentional movement to help Leftists openly dehumanize the political Right, to make it easier for us to be literally exterminated once they take power. Every single time the Leftists have succeeded in one of the Revolutions or take-overs, the very next inevitable act is the mass murder of millions of people who opposed their rise to the throne. There are 22 examples from the last 110 years of human history, and not one counter-example to this rule. Leftism has been responsible for the murder of a quarter billion political opponents in their own countries in the last 110 years, far more than all was combined. When they take power in America, by whatever means necessary, they need the Right to be seen as Deplorable, as Nazis, as zombies, so that the average Leftist can get on board with the mass murder of 30-50 million of us that needs to follow. Most people generally won't support mass murder without several years or so of conditioning in advance. This is their conditioning program.
(*”far more than all was combined” = far more than all WARS combined)