I feel like this would be a solid 4D Chess Strategy. White Nationalists pop-up in "solidarity" with the Muslims by also converting to Islam. Then, the new White Muslims start conversing with their non-White Muslim brothers about how best to make UK more of a Muslim country. Then convince the non-White Muslims to start promoting more traditional Islamic Values/Beliefs in the UK, while the newly converted White Nationalists merely show support for their Islamic brothers.

Could be entertaining.