So let's have a look at your facts, shall we? The US and UK populations are:
"- kept busy by being overworked, underpaid and overtaxed".
Overworked? In both countries, the total hours worked are trending down.
Underpaid? There's a lot to be said about this, but one interesting factoid is that since approximately 2009 (i.e. the end of the global financial crash, and coincidentally the beginning of the Obama presidency), the decline of the middle class in both countries has pretty much stopped.
Overtaxed? In 1950, the UK's basic rate of income tax was 45%. Now it's 20%, and the trend has been pretty steadily down all that time. In the US the picture is slightly different, but again tax rates have trended downward for most.
"- kept scared with horror stories of terrorists and immigration" - I'm guessing you don't remember the 1970s, on both fronts.
"- poorly educated, taught by rote instead of being taught critical thinking" - again, there's an awful lot to be said about this (and an awful lot has been said about it, pretty much every year since the 1970s), but here I'd like to make a meta-point: your entire comment boils down to "we need better people". If we had better people, we wouldn't be having this debate.
Your last two points I might be prepared to concede, but only if you post some links to back them up so that I know what, specifically, I'm conceding.
"Then current population are now easy to manage with lies" - umm, syntax aside, what specifically are you claiming is different now as opposed to 40 years ago?
Your post is itself an excellent example of post-truth politics: it panders to existing prejudices and bias, without being specific about its own meaning, hints at a problem that is inherently unsolvable, and therefore - what? "There are no facts, trust nothing"?