If 83% say it’s as bad or worse than when Trump was president, that proves that the division wasn’t Trump’s fault, as the left claimed. More likely, the divide is due to the aggressiveness, stridency, and censoriousness of the left.
The divide is DUE to the very existence of the Left. Their stock in trade is to pit race vs race, class vs class, gender vs gender, sexual orientation vs sexual orientation, urban vs rural... Divided? That is the goal. It is absurd to believe otherwise.