Interesting. I'm actually ambiguous on the political perspective, but I fully disagree that the answer is obvious. Why should longevity protect a work of art from being subverted? On the contrary; to paraphrase Stroustrup, I'd say there are only two kinds of monuments: the ones that have been subverted and the ones nobody cares about. Fighting that is tilting at windmills.
I don't know, if you wrote a sentence saying "America is great" and someone came and appended "but women aren't afraid of it", that would change your sentence in ways you didn't intend. It's not longevity that drives you to defend your sentence, but the fact that you didn't intend it to read that way.
