Of course it is so politically incorrect to call a spade a spade. But as you should know Mr Greer is not entirely wrong. England was never in need to look critically at its own past.
It seems England does not only love its wars, but also tends to forget about its own history. From colonial rule, to drug wars, slavery and how they treat(ed) Ireland. Some of the worst is still being locked away, to not arouse public indignation. You know this could lead to raised eyebrows.