I'm curious that this poster has had so many different reactions. For my part, my immediate gut reaction on seeing the poster was that it is racist, and should not have been produced, and on reflection I still think that.
My rationale is that on the whole it is very wrong to stereotype groups of people in bad ways. That is true no matter who the people are. It's wrong when UKIP tries to stereotype Eastern Europeans as some kind of swarm trying to steal everyone's jobs and benefits. It's wrong when certain right-wing groups stereotype asylum-seekers as rapists or terrorists etc. And it's no less wrong if the target of the stereotype happens to be something like 'white people' or 'British people'. When you stereotype any group of people as bad, then you risk inciting hatred or fear of people who happen to share that ethnicity/nationality/whatever. And you also stir up feelings of victimhood, or of not being taken seriously etc. by the people being stereotyped. In short, you stir up division between communities, and we all know where that leads.
The poster features a thug who happens also to be a white skinhead. We don't know which group of people this 'thug' was originally intended to represent, but it should be obvious to anyone with half a brain cell that he happens to be the only white person on the poster, so it's likely to be seen in many circles as stereotyping white people. Context is important, so the obvious question is, is there any context which would justify putting that image there. For example, if there was a particular problem of racism by skinhead thugs which this poster was trying to raise awareness of, then you could argue that image was perhaps justified. However, there is no such context: That isn't the purpose of the poster. The context is trying to get ethnic minorities to register to vote. Nothing to do with non-BAME people, so there seems to be no particular reason to put either a white caucasian person or a skinhead on the poster at all. Is there alternatively some context based on irony or humour or raising awareness of some problem that might justify the image? Again, I can't see anything relevant.
Looking at it, another way: If you did a poster trying to get young people to vote, would you seriously do it by trying to portray older people as bad/rich/b*****ds/whatever? I doubt it because that would clearly be offensive (as well as being plain wrong).
In short, the poster has an image which appears to be unnecessary, gratuitous, and clearly portrays a certain group of people in a bad way. The very kindest you could say about the poster is that it's a case of very bad stereotyping. But the obvious racial connotations, to my mind, make it inescapable that resultant image has ended up as racist. (Although I'm quite prepared to accept that might not have been the intention of whoever produced the poster).
OBV chose the thug because they want their audience to fear and hate white people. They then want to manipulate this fear and hatred into a vote to remain in the EU.
I think this is going too far. It's impossible from the poster alone to know what the motives are of those who created it. However, a quick perusal of the
Operation Black Vote website shows that it is encouraging BAME people to vote, but not to vote any particular way. Indeed, their main offering on the EU debate is
this leaflet which is completely even-handed, giving equal prominence to the views of the 'in' and 'out' campaigns. There seems to be no reason to think that OBV is particularly trying to support one side. I can't even see any particular reason to believe there is hostility to non-blacks amongst OBV. So my suspicion would be that the poster was most likely the result of a cack-handed process in which the people who signed it off either weren't thinking it through properly or hadn't thought about how others would be likely to see the image.
The result is clearly offensive in my eyes, and, as evidenced in this thread, in many other peoples eyes (although equally obviously from this thread, not in everyone's eyes). But trying to link it to some kind of conspiracy for the 'In' campaign is really getting rather silly.