Here's the thing, and you've done it several times in this line of reasoning.
Who are these people? You're throwing around, repeatedly, vague allusions to "these people," "closet racists," and "I have no doubt they exist." When pressed for what your ideas were it turned out to not address actual racism but complain about statues, and then complain that an open air museum is in the open air which makes little sense.
Who are these people? You seem to be referring to some kind of invisible racists nobody can detect but you're sure they're there. They're not in power, they got kicked out, there's little else to be done. They can't be made silent without violating their rights. They can't be ordered not to vote without violating their rights. They can't be preventing from protesting, marching, or meeting without violating their rights. They can't be prevented from publishing their ideas without violating their rights. What's left?
If you can point to a person or persons that exist, and a behavior that can be curbed without violating their rights, then we have somewhere to go. But as long as your issue is with invisible racists, I'm just going to go about destroying invisible statues to dissuade them.