White Briton's to become a minority in 2050

Based on the current trends of immigration into the UK that consecutive left wing labour and Tory government's have allowed into the UK, since 1970. White indigenous Anglo-Saxon and Keltic races are to become a minority by 2050. The high birth rates of Muslims and that they account for 80% of the high levels of mass immigration into the UK means that they are on course to become the majority. If this happens the UK will cease to be Great Britain and will just become an island of Sharia and Jihad.