No, you certainly can't. But, that said, you do not have to continue to honor it either.

As an example, and not to draw comparisons, would you suggest that Germany had left up all the statues of Adolph Hitler that they tore down after WWII?

There is no reason to equate statuary with recognizing history... that's not what it's about. It is about honoring history, and THAT is an entirely different ball of wax.