If u have in mind that England keep half of world in slavery, its not strange that everything is coming back. It is silent war, with their big families they will search for more and more space, more and more rights. It what happened with Kosovo and Serbia, muslim populate Kosovo over 20 years, and now they make their country and their laws.
Countries such as Japan also had their colonies in the third world. But the difference between Japan and the United Kingdom is that the former hardly allows any non-Japanese to immigrate to their country, while the latter just welcomes anyone who can jump the Channel Tunnel at Calais, irrespective of their education and skills.