And, short of a truly anonymous poll, you won't. Let the pigeons poop on their Escalades.
In the current environment of tearing down statues on public property by roving gangs of "mostly peaceful protesters", and in the climate of doxxing and threatening (if not terrorizing more directly) people who speak out against the narrative of "systemic racism", how many are going to come forward in protest?
If the people in those communities continue to elect race-obsessed "woke" progressives to local office, then clearly removal of Confederate statues is their will, just like defunding the police is their will and refusing to prosecute BLM rioters is their will. And if we don't find local election results credible because we prefer to believe that Dominion is hijacking local elections as well as presidential elections, then the people in those communities will have to take a stand on election law and on basic law and order and on statues. Or perhaps the people in those local communities will simply have to march in the streets to make themselves heard about these statues and other issues. I don't see any of that happening in Charlottesville, or Richmond, or Memphis.
I'm not defending these cities or their people. I want nothing to do with them. In no sense do I consider them fellow citizens with me in anything and for all I care all these cities can burn completely to the ground. But I'm not going to pretend that some silent majority there agrees with me just because I wish they did. We can theorize all kinds of reasons to believe that the majority *must* actually agree with us. But with no evidence it's just wishful thinking.
The people in these communities are getting what they want and they are the ones paying the taxes.