This was a question asked on Quora (see it here).
And this was my answer:
Many British cities are less than 50% indigenous British.
It is a fact that Britain has received many huge waves of immigration over the centuries. The Normans, the Vikings, the Huguenots, the pre WW2 European Jews and Poles, Commonwealth citizens, EU citizens etc
All these have contributed to our rich culture and civilisation, they are what makes Britain unique and widely admired, and they are proof of deeply rooted tolerance and understanding in British society.
Most people who come to Britain admire our values, so they want to integrate and become British themselves. To respect our rule of law and to contribute to our society and our economy. They come to build lives for their families.
The exception is Islam. They come from shit hole countries and they want to make Britain into a shit hole. They have zero tolerance for anyone of anything that is not Islamic. They seek to implement Sharia not just on themselves, but on everyone else too. They bring with them a crime epidemic, hundreds of thousands of white children have been raped, cash for crash insurance fraud, benefits fraud and election fraud are now widespread. And they continue to illegally subjugate their women with female genital mutilation, forced marriage, child marriage and honour crimes.
Unlike all other immigrants Muslims do not integrate across the generations. The grandchildren of Muslim immigrants want to force Sharia on society just as much as their grandparents. In fact they are often worse, as population numbers grow British Muslims are becoming increasingly radicalised, wanting Islam in its most primitive and fundamental form.
At the last census Islam was 5% of the UK population, but because of mass immigration and large families this is certainly more than 10% now and growing fast. Already some MP constituencies are more than 50% Islam. Eventually Islam will take political control and will implement their Sharia, this is a statistical inevitability. They will then have no tolerance. For instance 10 Muslim counties execute homosexuals, so they will be oppressed here too.
There are already very many changes in British society made to accommodate Islam. It is difficult to buy non Halal meat and many restaurants no longer sell pork for instance. Also there are Sharia courts all around Britain, implementing something that is not British law. So the transition from a liberal democracy to a primitive theocracy will be gradual, but it is happening.
Basically Great Britain is being invaded by a totally alien culture and the invasion is set to succeed. Our politicians have encouraged and enabled the invasion. Muslims are very politically active and now disproportionately control local politics. They have also entered our political parties and have risen to the rank of government minister and London Mayor.
So Britain, as you know it, is finished. Because of our tolerance there is no mainstream political will to prevent this. The deep irony is that liberals in politics and the media will, through Islamification, bring about the exact opposite of everything they believe in.