Using Mao's actions to make your point is fine for a country as old as China. Tearing down statues might objectively be viewed differently in a country as young as ours.
Which brings us to current affairs. We don't have a winner, yet. Perhaps once we do, the CHOP founders will be memorialized in statue form, or maybe president Trump?! (stop gasping, KF!)
Obviously it's not as simple as deciding 'Confederacy bad, slavery bad' and removing those statues, via mob rule, because now the mobs have come for the founding fathers, Abraham Lincoln, other abolitionists, Columbus (no complaints from me about that, although I would like to keep that holiday at work!), and even John Muir is being cancelled. As a country or culture, we all are certainly not in agreement that those people are bad and need to be de-commemorated. Besides, It's clear that the idiots in the mobs just don't like statues. I prefer not to have the history of my time determined by people like that.
A prudent, reasoned approach would be best, imo. Not just current generations, but all generations should be cautious about what we/they do in terms of updating history to suit our/their current values. Those, who by force, are making those judgments now, are seemingly unaware that their actions are just as likely to be cancelled by future generations. Would they even care?