britain is responsible for some of the worst imperialistic crusades in history
Yo, I'm gonna jump in on this, because you using the term 'crusade' is crude and ignorant.
A crusade is a specific thing, a holy war sanctioned by the papacy, with the intent of retaking holy land.
Whether imperialistic or cruel, Britain has never performed a crusade. (The Kingdom of England and some of its individuals were involved in Crusades between 1095 and 1291, but Britain wasn't formed until 1706).
It's only on account of our "imperialistic crusades" that you're using our language, so it would be good if you learnt what the words meant before you used them. :)