The essence of what Sanders and Corbyn advocate (Sanders in particular), is in policy terms normal, time-tested, and utterly mundane within every part of of the developed world - save the always exceptionally parochial United States and UK. But it
is more likely to be the UKIP agenda that prevails, if the self-proclaimed sensible keep childishly pretending that the constructive alternatives to their own constrained set of acceptable responses are tantamount to Chavez and Pol Pot - which of course only compounds the sense of frustration and alienation from mainstream politics.
It is not just about the money - obviously - but that is the the quickest and simplest place for the government to start. The UK spends less on health and education than most countries in Europe; recent NHS spending adjustments have,
entirely predictably, resulted in crowding, increased wait times, staff burnout if not exodus, and plummeting general morale - not exactly conducive conditions for carrying out more systemic reforms. University tuition is off the charts anywhere except America (like topping Port Vale in the Football League table), and the trains slower and much more expensive. Perhaps a reason the why university attendance and rail access have become such distinctly middle-class services is because nobody else can afford to spend or borrow the 9k and up to 5k/year, respectively, that it now takes to use them? Perhaps a reason why Boston and other Brexit towns from your rhetorical flourishes have become so disenfranchised is because so many people who live there no longer see a realistic means of going anywhere else?
And which party leadership called for major infrastructure development, at a time when UK productivity has stagnated and central banks are tearing their hair out trying to get governments to invest in exactly this, such that borrowing now costs less than inflation?
Anomie in France is a fair point - as I said, it is obviously more complex than mere spending levels, and the state alone can only do so much. But there are some very easy and obvious things that the UK can be doing immediately; instead, we're clearly hellbent on moving in the opposite direction, all the while insisting that even modest tweaks against our race to the bottom amount to storming the Bastille.
I'm not some doctrinaire Corbynista. His position on Brexit is enormously frustrating, for instance, if not all that surprising given the nature of parliamentary Labour and its constituents.
But to claim to nobody is trying to address the disenfranchised portions of society is self-serving nonsense. It's just that it hasn't yet been transmuted for broadcast via the highly attuned, acutely sensitive media dogwhistles that "sensible" people seem to require before they can hear anything at all.