The only way possible to present the tragedy of invasive colonialism obnoxiously enough to make the audience want to dismiss entirely what would otherwise be an important point.
Want to really show their hypocrisy, the UK has been in Ireland longer than white people have been in the US. I mean, what my country did in Ireland is foul and I think Irish people should have every right to choose their own future but the point still stands. Some Americans will call it imperialism, without a hint of irony or self awareness.