At the Christian Socialist Movement's website, Andy Flannagan in his blog writes:
"JESUS AND THE BNP
Nationalism is nothing new. The Jews of the first century were hoping for a national Messiah to once more turn them into 'a great nation', again operating as the political powerhouse of their region. But Jesus confounded their desires. What they got was someone who announced that justice, mercy and compassion were to be extended to insiders and outsiders, friends and enemies alike. He was always clear that his and our primary allegiance should to be to 'the Kingdom of God', and not to any earthly kingdom.
Placing our selfish desires ahead of Jesus’ values of hospitality and inclusion takes us into very dangerous territory indeed. Much of the BNP's platform is the antithesis of this embrace and this advert would be hilarious if it wasn’t so serious.
The BNP's co-option of Jesus is a bit like the Ku Klux Klan co-opting Martin Luther King."
It really is
[update] More on the condemnation of the BNP's tactics at another website: Christians, Jews, Muslims condemn BNP's Jesus posters[/update]