There is an irony in you posting two answers within minutes, one likening a british political party to neo-nazis, and the other highlighting that you make a distinction between neo-nazis and other forms of racism.
The British National Party used to be called the British Union of Fascists. Nick Griffin was leader for 15 years, until 2014, and is a holocaust denier. Until 2010, they had an official "whites only" membership policy. It's illegal for police, fire frighters, and prison officers in the UK to be a BNP member. The Church of England forbids it's priests from being members. It's not much of a stretch.
If you're not British you might think "oh they are just another political party", that's not true at all.
If you're not British you might think "oh they are just another political party", that's not true at all.