It would be great if they weren't statues of slavers and those traitors that defended it as well and something that stood as a sign of positivity of what came after, but you lot really do love having idols of traitors and villains standing up so much.
Also, by my logic of what exactly? That I don't think statues and idols of said traitors and villains should stand and their atrocities should be taught through actually classes and literature instead of letting them stand as if they were some hero or did good for their area. country, etc.
As for convenience, you act as if it is really a strain to take 5 seconds out of your life to google "What happened in the American Civil War?" and not immediately find all the facts in an instant so your argument of convenience is as laughable as your outrage of a traitor and villains statue being torn down.
Now as for the fact of knowing information, please, most of these have short sentences IF that your just has the name of the person and their birthday and nothing more, so what OH SO IMPORTANT information can I gleam from that. Does it tell me what they did, what their role was, what exactly happened at whatever supposed event they were in, or how they are actually of significance?
Finally, as for tearing down museums, nah, because they contain a wealth of information, artifacts, and more that actually contribute to knowledge and give descriptions of what really went down in history as well, nor do they propagate or pretend that anything representing a person or people should be viewed as reason to hero worship them either.
Sorry that it is hard on you that the statues of one of your heroes was destroyed and it made you extremely upset, but maybe consider not making heroes of slavers, traitors, and terrible people next time.