for the same reason that everyone is entitled to due process even when things are incredibly obvious… it’s important to follow a process, to document formally, etc

I guess the point would be for everyone involved to say "never again" and if someone quotes Hitler they should not win elections.

They'll formally apologize, as talk is cheap, and then do nothing further.

And no, I'm not at all kidding or exaggerating: this is THE most common strategy in British Political and Social Elite circles for getting rid of such "problems" when denying it doesn't work.

Deny it, deny it was a problem, deny it was systemic, apologize and claim it was too long ago and it's pointless to do anything about it now, is a well travelled multi-step strategy in British politics (THE main strategy, even) to avoid actual consequences for their actions or lack of action.

True. This is what I am also thinking ? Everybody knows the colonial powers or imperial powers did lot of atrocities, exploitation. It is there in books.