Enoch Powell explained all this nearly 60 years ago, and was sacked the next day by Edward Heath. The term "racist" is at best useless and at worst dangerous. It doesn't differentiate between judging people based on their physiology and judging them on their culture and values. By going out of their way to avoid appearing to judge by physiology, people allowed into their society millions of people with cultures and values fundamentally opposed to their own (e.g. Christians using the British common law vs Muslims using Sharia law). The result is a slow destruction of society that Enoch Powell predicted so long ago in his 1968 speech.