Probably because it serves no other purpose, then further divide a country already divided.
What possible good does it do, to teach a child, that at one time, our country was VERY racially divided. Yet here we are, with the new installed dictator, trying to purposely racial divide this country.
It's obvious how it warped your brain, by teaching it to you. I don't want my children growing up to be a facist "Woke", communist, nazi like you!