“No other sure foundation can be devised for the preservation of freedom, and happiness…. Preach, my dear Sir, a crusade against ignorance; establish and improve the law for educating the common people. Let our countrymen know that the people alone can protect us against [the evils of “kings, nobles and priests”], and that the tax which will be paid for this purpose is not more than the thousandth part of what will be paid to kings, priests and nobles who will rise up among us if we leave the people in ignorance.”
My British sister-in-law recently commented, "It's jolly difficult being an American."
What she meant was that the proper functioning of our democratic system of government is wholly dependent on an informed citizenry.
When you hear someone bemoaning their vote for the incoming president because they didn't realize he meant what he said (or didn't even know what he said), try not to respond with, "Serves you right!"
Tell them it's all gone wrong because "many people" just can't be bothered to pay any attention to politics or the news, or else they get their ideas entirely from unreliable people and sources. Gently suggest that it's the responsibility of "people" to pay more attention and become better informed before casting a vote.
You might actually influence someone to do better next time.