Her crime? She'd handed out flyers emblazoned with messages like “Allah is a gay God” and “Allah is trans” in Luton. According to news reports, these were "racist" flyers, although in what way they were racist is not clear, for although they might be considered anti-Muslim, Islam is not a race.
Her intention, apparently, was to demonstrate that British law discriminates against Christians whose god is routinely mocked and insulted in the media and entertainments industry.
Her expulsion from Britain proves her point. Britain enforces Sharia law but treats Christianity with contempt, a fact that brings to mind this comment by Dr. Daniels, aka Theodore Dalrymple.
Political correctness is communist propaganda writ small. In my study of communist societies, I came to the conclusion that the purpose of communist propaganda was not to persuade or convince, nor to inform, but to humiliate; and therefore, the less it corresponded to reality the better. When people are forced to remain silent when they are being told the most obvious lies, or even worse when they are forced to repeat the lies themselves, they lose once and for all their sense of probity. To assent to obvious lies is to co-operate with evil, and in some small way to become evil oneself. One's standing to resist anything is thus eroded, and even destroyed. A society of emasculated liars is easy to control. I think if you examine political correctness, it has the same effect and is intended to.Anthony Daniels: Frontpage Magazine interview (August 31, 2005).