But under statute don�t they have the freedom to belong to any membership body they so wish? Whilst they may be members of the BNP, this does not necessarily mean they will vote for or against them, or agree with everything they say.
Britain, as well as being a representative democracy, has also been labelled a liberal democracy. A country that claims to be a "liberal democracy", embraces the whole issue of civil liberties - freedom of speech, freedom of thought, freedom of assembly freedom of religion etc (within the confines of the law) all are of paramount importance.
As far as we are aware, these people have not broken the law, and are not doing so by association are they?