For Britain is no more, and Anne Marie Waters has since veered even further to the right, which is why I said "Waters currently." Morrissey did appear to agree with the For Britain platform on immigration and Islam. He diverged with them at least on climate change, since he routinely brings up the environmental cost of meat in addition to its profound cost of animal suffering. I'm not convinced he cares about stopping climate change, given his jet-fueled touring (personally, I don't care about stopping it either). I suspect he'll say anything to get people off eating meat.
You raise a good point, though. It's the same thing Billy Bragg challenged him with: if he's so concerned with animal liberation, why didn't he support a more strident abolitionist party over For Britain? He must've agreed with For Britain on more than just liking their elfin little charismatic Irish vegan founder.
By the way, you might want to contact your editor at the Burkean. There's a typo in the Immigration section. "Machester" needs an "n" in there. But it won't save your bad writing. Try to stay off the Adderall.