It has sometimes been argued that in gaining Canada in the Seven Years War, Britain had undermined her position in America. Without the French threat, why should the thirteen colonies stay loyal? Yet the loss of America had the unforeseen effect of securing Canada for the Empire, thanks to the flood of English-speaking Loyalists who, together with new British settlers, would eventually reduce the French Quebecois to a beleaguered minority. The amazing thing is that so many people should have voted with their feet against American independence, choosing loyalty to King and Empire over 'life, liberty and the pursuit of happiness'.
Empire: How Britain Made the Modern World (2003)