High treason.

We cannot allow the greatest nation in human history to be destroyed by the planet's most barbaric cultures. The British people, like their Dutch, German, Italian, Spanish and Danish counterparts, have every right to desire self-determination and self-preservation, and limit or even completely halt immigration as they see fit to ensure this. Those who say otherwise are evil, and need to be exposed as such. The Western world is under attack by a global Islamic Jihad. To support continued mass immigration of Muslims in this situation should be regarded as high treason, and punished as such.

"The Execution of Britain." By Fjordman, The Brussels Journal 6/5/08.