I can't speak intelligently about UK centre-right, but here in Aus our Liberal party (as in classical liberal, centre-right) are almost indistinguishable for our Labor (centre-left). Big spending, big government and so we are seeing many of the same problems you mentioned.
I wonder why only the "populists" speak out about these problems, and then why most populists movements are led by extremists. It's not like fascists or communists ever had or have real economical solutions for healthcare or housing or environment, yet they constantly gain votes claiming exactly that (without detailing, of course). Why are all the big traditional parties only paying lip service to the real problems of the little man, even while pretending they represent them? And no I'm not sarcastic, this is a real question which bothers me extremely.
Parties don't really represent interest of their voters. They fish for votes to obtain political power, but they represent the interests of the people who run them (and their friends and patrons) - who are, generally speaking, not their voters.
Thus, traditional parties represent the interest of some subset of the established elites. Which means that the current socioeconomic arrangement is broadly in their advantage. They know that those problems are real, but they can be only solved by giving up some part of the pie. And organizations are much more selfish than individuals, so they never give up unless they believe that the alternative is to lose even more (hence why a messy revolution somewhere else can often do wonders).
