So let's start demolishing the buildings on the Bund in Shanghai, they are symbols of oppression by colonialists. Let's demolish the House of Commons in Ottawa, because it too is a symbol of oppression, genocide  and exploitation
Let's take down all monuments that were erected to honour the people who changed the course of history because it doesn't suit the present day parameters.
Of course, 150 years from now , when not one single person on this earth today will be alive, a new set of loonies will tell the population that they shouldn't be honouring the memories of today's heroes ( if there are any!) because that's the way life works.
I personally don't see what Donald Trump has to apologize for , he tells it like it is and it irritates the sensitive nerve endings of the champagne socialists and naive students.
Some privileged professor of PolySci or rich commentator spouting off about the way they want revenge doesn't do a thing for me.