Well, I would agree that England was guilty of a great many wrongs all through its imperial phase. However, I think they passed the imperial torch, albeit somewhat unwillingly, to the USA in 1945, and the USA has never looked back. Will Steven Grasse do a book on America's Evil (Mercantile) Empire next, I wonder, just to be fair? ;-)

The Soviets had a good kick at the imperial can too, till they ran out of money.