In Islam, celebrating Christmas is considered to be “shirk” (unforgivable sin). According to a story from the quran, Khalad executed a man who decided to live among the infidels and embrace their culture. He claims that Muslims must reject the culture, holidays, and traditions of all non-Muslims because it turns Muslims into kuffar.
(Are there really 2 million Muslims in England now? No, there are 3 million)