Too tired to type much, so just outline.
aermingers story is about workers travelling to UK, doing jobs here, at least paying tax and spending money here.
Missing huge chunk of story about jobs travelling out of UK, being done in other countries, paying no tax and spending no money here. Midrange admin and skilled manufacturing jobs in economy almost all disappeared overseas. Hug chunk of economy now "missing".
Hourglass economy likely for UK's future - top and bottom, no middle.
This being done by employers and companies. Not a Labour plot. Not even a Tory plot. Can't be reversed (unless bring in protectionism - which could be done but wd have massive knock-ons also impacting aermingers). Certainly can't be reversed by UKIP, regardless of nostalgia or flag-waving.
Unions invented precisely to cope with issues described by aermingers of oversupply of labour, regardless of source of labour. Weakening of unions has allowed wages to drop - employers pleased at this. Labour not uninvolved in this, but parties most against unions have had biggest impact. Odd to assume Labour plot to lower wages when Labour only party doing anything against low wages (NMW, Milliband finally making noises about zero hours, Ming Campbell having not done enough).
Much of what Labour has done I can't support, but know other parties at least as bad or worse. To kid oneself change in economy caused by Labour plot to impoverish workforce (!) is to be vulnerable to false promises by magic wand wavers.