I really get exasperated at the insanity and selfishness that we are surrounded by these days. Maybe this is the reason I enjoy the park to go to " another place and time". Lets fight to keep the history (what's left) in the experience and not push it away and act as if it never happened. There are lessons with this history and when you remove the relics you essentially remove the history. Dachau still stands as does Auschwitz, the pyramids and the sphinx. Maya ruins. Statues that the insurgents in the middle east have already destroyed to public outcry.
They are history and most should be preserved. When I was a boy we broke a hurricane lamp that was on the mantle horsing around, my parents left that broken lamp on the mantle, every time I walked by and saw it I was reminded of what caused the destruction and knew not to repeat it or I would be looking at more of my handiwork. This was a lesson, or as I like to refer to it "history", each passing I was reminded not to repeat. The lamp condemned my actions and reminded me that if I acted that way again I would have to explain to visitors to the house why I was so slow to learn. Removal = cleansing = memory loss.