As I see it, there are two reasons why so many in the general public come across as “low-information”, often appearing to ignore or even deny what seems clear to those who are more knowledgeable.
First, many of us have what I call an ahistorical view. This means that if you were born in a certain year, like 1969 in my case, anything that happened before that is irrelevant to you and may be ignored. That is why you see so many white people argue, “I had nothing to do with slavery before the Civil War! Don’t blame me for that!” Or, “I did not kill all those Native Americans back then and take their land, it’s not my responsibility for them now!” See this earlier blog entry for an expression of that ignorance by an actual celebrity:
https://dalehusband.com/2015/05/13/john-wayne-great-actor-terrible-human-being/
Dale Husband's Intellectual Rants 