"The BNP’s policy is to:
- Deport all the two million plus who are here illegally;
- Deport all those who commit crimes and whose original nationality was not British;
- Review all recent grants of residence or citizenship to ensure they are still appropriate;
- Offer generous grants to those of foreign descent resident here who wish to leave permanently;
- Stop all new immigration except for exceptional cases;
- Reject all asylum seekers who passed safe countries on their way to Britain."
http://bnp.org.uk/policies/immigration /
The BNP is smart enough (though perhaps just barely :) ) to know that you start with opposition to illegal immigration and criminals (the groups with the least popular support). Then you stop all immigration (if illegal immigrants were taking our jobs, legal ones probably are too). Then you review previous grants of citizenship or permanent residency (once you make them "illegal" again, off they go). Finally, for all those immigrants that you haven't been able to get rid of, you offer to pay for them to voluntarily repatriate themselves. (Something tells me that if the BNP comes to power the "voluntary" part of the repatriation might just be subject to change.)
Their stance on immigration is consistent with their goal: "The BNP seeks to restore the overwhelmingly white ethnicity of Britain that existed prior to 1948 through legal means, including "firm but voluntary incentives for immigrants and their descendants to return home", and the repeal of anti-discrimination legislation.
http://en.wikipedia.org/wiki/British_National_PartyEurope as a whole, including the UK with which the far-right BNP is kind of out of step, is quite progressive and has a much better immigration policy. We should consider an immigration system more like Europe's (but I could say that about national health care, social safety nets, support for unions, regulation of business and markets and progressive taxation, as well). :)