I find your remarks about political euphemisms to be quite worrisome. We all like to think that political code words are only used by dictators and their ministers of information to massage and manipulate their citizen-slaves. “The People’s Revolution has made us all free! Free!!! Now move it freely, comrades.”
But it’s obvious that such word deceptions also occur in representative governments. And it’s harder to detect them there since liberated citizens have been trained not to expect them. Why would there be deceptions in free countries which are democracies? Whoops! There’s two word deceptions right there!
Even worse, most people go through life unaware of the built-in biases of language: of the fact that no language is ever neutral. They don’t know their language contains implicit interests, not only in its old standard phrases, but even in its most modern words, too. And if they do know, they probably don’t do anything about it — except grumble and gripe. It takes a lot of work to think about words! It’s easier to let the words think for you. Everyone else does!
Which brings me to my next point. Because most people don’t pay attention to political language as a subject for semantic suspicion, any politician who speaks energetically to a people’s anger and frustration — like Hitler — promising satisfaction and relief — like Hitler — is already on his — or her! — way to becoming a demagogue. That’s because unhappy people thrill to the power words of freedom speech. And the unhappier such people are, the louder they smile with each thrill! And then off they go marching on an invasion of freedom — to liberate the country next door or the store down the block.
Worst of all, this can happen easier than ever now through the directness of social media. Trump has recently been provoking Americans into making inflammatory remarks about major press corporations. By directly agitating American citizens with exciting verbiage, the incivility of civil society you spoke of may be increasing — and ominously so at that!