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 Please see following searchlight article Goodbye, racial nationalism, hello, ethno-nationalism. 

It is simply absurd to call the modern BNP white nationalists when they oppose white immigrants (e.g. poles, slovaks) entering UK.

Global encyclopaedia of political geography, M. A. Chaudhary, Gautam Chaudhary, Global Vision Publishing, 2009, p. 243 for example notes: ""Conversely, ""white nationalism"" in Europe normally indicates a racial variant of an existing ethnic nationalism. For example, the British National Party opposes large-scale immigration of Russians and Poles, even though they are white'

So yes, the poltical ideology box needs to be updated to ethnic nationalism.   "