... which "good people" are you talking about here? I haven't heard anyone talking smack about Hildegard von Bingen, for example, or Isaac Newton.
I have heard people who believe we should tell the whole truth about historical figures like Thomas Jefferson, who raped a teenage slave he owned & perpetrated genocide of Indigenous people, or Christopher Columbus, whose contemporaries condemned the genocides he committed, but that isn't "cancelling" anyone: it is just no longer being willing to lie for the comfort of the powerful.
I have heard people who believe we should tell the whole truth about historical figures like Thomas Jefferson, who raped a teenage slave he owned & perpetrated genocide of Indigenous people, or Christopher Columbus, whose contemporaries condemned the genocides he committed, but that isn't "cancelling" anyone: it is just no longer being willing to lie for the comfort of the powerful.