Plenty of people don't know their history, regardless of party affiliation or political leanings.
It's laughable to only point to one group of people, you may as well say poor people don't know their history, or that minority groups don't know their history.
A lot of powerful people would prefer if you and I did not know our history.
Schools do a plss-poor job teaching history, goes right along with the rest of what goes on there.
Who goes to the library on their own volition these days?