Way back in the long distant 1990s, net migration into this country used to be in the tens of thousands each year. There was no lack of discussion about that, but we were not yet in the ‘dependency’ period of migration: that is, when people routinely said we had to have migration because otherwise who would do the menial jobs that we Brits didn’t want to do? You know, things like work in the NHS, work in restaurants, clean.