On "the forgotten/abandoned working class thesis":
The problem is it's a term/argument used by very different people and for very different reasons. At one extreme, it's at the core of racist, BNP thinking - and used purely to support racist campaigns: 'look at them, getting your stuff, while the establishment does nothing'
At the other extreme, there is a valid argument about the nature of town hall liberalism and the form that the politics of multiculturalism over the last 20 years. Rather than ethnicity being the basis for an anti-racist politics, its drifted into a highly managed and mangerialised professional discourse. It becomes an allocation system in which, if you can establish your 'identity', you get a slice of the pie. Very, very different from the kind of anti-racist politics that could have been rooted in a class politics and even an anti-capitalism. It's also an allocation system in which the white working class have little purchase. Its almost impossible to start asking for houses/community centres/cultural provision if you are not regarded by those in power as having a valid cultural identity. All of this somehow gets worse when wrapped up with other socioligical discourses around postindustrialism and even the 'whats the use of men' argument - the notion that the working class is losing its place/purpose in the world. In turn, its a class that increasingly sees itself represented in the media only as a problem or a dinosaur (chavs, pregnanat teens, asbo-ees).
With all that background its not surprising that there's been something of a backlash (and by that i don't mean a backlash against 'immigrants' - I mean the backlash against institutionalised forms of multiculturalism and liberalism) - on these boards and elsewhere. Problem (obviously) is one of steering any kind of class politics - which says some of the above - away from racism and zero sum game politcs. If it emphasises class politics, its got to also say that black workers are part of that class.
Of course what's tricky is that both racist 'pro-working class' positons and IWCA/anarcho working class politics have in mind somehing of the same phenomena - the multiculturalism industry and liberal/lefty commentators [and by that i'm not remotely suggesting that the iwca is 'like' the bnp - just that they come at a similar phenomena - but from a profoundly different position]. To me, that means people have to tread pretty carefully when doing this kind of politics - and make clear who the real enemy is.