Change in relative GDP is a very weak argument. A massive productivity boom in other nations (via the Industrial Revolution) doesn't necessary effect a nation's

Change in relative GDP is a very weak argument. A massive productivity boom in other nations (via the Industrial Revolution) doesn't necessary effect a nation's existing production (except when workers they are placed out of work by, eg. the cotton gin) Theft is theft no matter how justified it may seem and whoever the perpetrator is. Also the alliance you mention is certainly anglophone, but certainly not limited based on ethnicity.