After reading that a lot of EEs are racist I'm a little surprised... in civvie life I've encountered quite a few EEs who were either openly attracted to me or are in relationships with and/or attracted to black guys.
Polish friends & acquaintances have openly related to me that they believe, as a national group, Poles are/were indeed generally far more likely than most other white Europeans, to hold and express racial prejudice, particularly in regards to black people. Certainly the ethnic make-up of their country is still highly homogenous, so it seems likely that unfamiliarity plays some role.
Actually this just reminded me of one of my favourite excuses I remember hearing a couple of times way back in my early punting days of booking phone box card girls, showing up only to be told by the maid, "sorry love she doesn't see black guys, her boyfriend is black so he doesnt want her seeing any others"
I missed that at my first reading, and was about to suggest something similar - but I now see that you appear doubtful. That said, we do see that it's a fairly common reason given by Indian, Pakistani and Bangladeshi WG's for not seeing men of South Asian ethnic origin... the pool of such punters, though large in London and other cities, is nevertheless a minority of the overall market - but probably represents 100% of that from which their family, friends & acquaintances are drawn. The chances of meeting uncle Sanjay, his friend you met at a wedding or a distant cousin, and all the awks that would follow, is greatly reduced by an outright racial bar. Surely it's not out of the question to suppose something similar for white EEs with black boyfriends or family, if, as you and other say, non-professionally, they seem to be slightly disproportionately more interested in colour-blind relationships.
All of which leads me to another observation: the number of UKP members who are black seems disproportionately far higher than I'd expect if it mirrored a representative sample of the UK population (which appears to be 3-5%). Thoughts - especially from, ahem, our black members ?