Yes, you did (way back).
I suspect because the British working class has always been quite socially conservative (with a small c). When the slave trade was abolished, it was the liberal middle classes who supported it for ethical reasons, while the working class objected because they saw that their jobs were at risk, because cotton was no longer a cheap import and some factories closed down.
I think we're seeing a similar phenomenon now. Whether or not it's true that immigrants are 'stealing their jobs', many of them certainly believe they are and Ukip plays to those fears, while Labour is seen as a London-centric party, which is more than willing to play along with capitalism (even when doing so makes economic sense).
There is a history of right-wing ideologues exploiting the fears of the most vulnerable.