Ignoring history is one thing, rewriting history is quite another. History does not exist by itself, but in context with the whole cultural mileau of the time. That is the value of history to understand what happened in the context of its time. To say something is bad because it happened is one thing, but to understand why it happened is something else. This how societies evolve. The reason why we think differently today is because our whole culture has changed. Is it therefore justifiable to remove all references to the past, no. In a narrow minded knee jerk response way, it will seem to make sense. But think instead, in the long run, removing all those monuments will in the mind of many people, erase the past and effectively destroy any lessons we learned from it. Far from achieving your goals of eliminating the mistakes of the past, you will in fact make it possible to repeat all the mistakes again. As far as your example about talk about terrorists among refugees, it makes more sense if we don’t have the experiences in France, Spain, Sweden and the UK, and the actual words of ISIS, they will use and infiltrate the refugee stream. I get your point, you want to rant, but rants are almost never rational and thought through. Try to write something that makes a point rather than contradicting itself midway and again toward the end.