It seems like voters in this country are in the Trump camp (40%) or not in the Trump camp (60%)
Assuming your percentages are correct, the 60% not in the Trump camp are spread over the Democratic, Republican, a multitude of minor parties, and the biggest clump -- independents. And the vast majority of these tend not to vote at all. The amount of actual eligible voters who actually vote always has been embarrassingly meager. (To the extent that when they did turn out in larger numbers than usual, the loser tried to use the large number of votes as evidence of fraudulent voting.) I see this speech as a rallying cry to what Nixon called the Silent Majority -- be they Democrats, mainstream Republicans, others or independents -- to not feel their only choice is between the polarized extremes and sit on their hands, but to recognize that extremists are a threat to democracy if they don't turn out to reject the extreme and vote for constructive, pragmatic politicians willing to work together.
