It's not just the 'whackier edges' though is Basil? If you look at opinion polls immigration is a major issue for a lot of people. And it affects the working class most.
Take my own situation. Pre the EU ascension state immigration in 2004 my family was fairly financially stable. My husband worked in the construction industry and we could afford to clothe and house ourselves, maybe go out to the cinema once a month and pay our bills and save a very small amount each month, we would go away once a year, normally to a caravan somewhere like Skegvegas.
When the ascension states joined the Emily Thornberry's of this world crowed about how marvellous it was that they could get a cheap plumber. But it wasn't just highly paid plumbers whose wages dropped, it was labourers and slingers, and brickies and everybody else who was just earning a living wage. My husband's wages halved overnight, we've been on tax credits since then and we struggle to meet our day to day costs and a holiday or a trip to the cinema would be impossible without stiffing the gas bill. We had a living wage and now we don't. And that's been directly caused by immigration. Much of this was pre the economic downturn too so can't be blamed on that.
I don't hate Polish people or Bulgarians, they're my husband's colleagues and as a result we have many personal friends. But we also know that on the wages they get it's possible for Poles to come over for a few years, live in a caravan as single men with shared beds that are slept on in shifts and have a crappy life for a bit then go back to Poland with a good wedge in your pocket to enable you to have a decent family life.
If you are settled here and you have a family you don't have the option of living in a caravan with five other men for a bit then going and putting down a deposit on a house in Poland to get away. You're stuck in the reality of a low wage existence. British working class people are accused of being 'lazy' because they won't do certain low wage jobs which are hard and dirty for practically nothing but the reality is that they often can't afford to do these jobs but single people who come in from other countries and are prepared to live in really unpleasant circumstances for a while and work 0 hour contracts because they won't have kids to feed with no savings if a week doesn't have an hours can.
Housing is overstretched, council housing is extremely hard to get, the homes we live in are much smaller than pre-1997 and much more expensive.
Wages have fallen 8% in real terms since 2004. If you work in unionised jobs like construction, admin, retail, call centres or social care where you are in a race to the bottom in terms of wages because there are plenty of people who will come in and do hard, dirty work for practically no money.
And you can shout 'racist' and sneer as much as you want but when people like me can look at things in their lives that have become much, much harder because of levels of immigration it just doesn't wash. When I look in my purse and I know I'm going to struggle to buy an onion, a tin of tomatoes and a bag of pasta for tea and I know that wouldn't have happened in 2003 I am not being racist. I'm being realistic.
But hey, after years of studying at night, working in the day and getting a mountain of student debt in the process I'm going to qualify as a teacher soon and join the ranks of those who have jobs which haven't been affected by immigration and who have unions to protect them. Then maybe I'll be able to sit and sneer at people who are concerned about policies that have had a catastrophic effect on their lives too.