We should scrap Columbus Day and move Thanksgiving to October.
The federal government cannot continue to sanction the celebration of a man who, by his own account, set about to conquer and enslave the Native Americans once he "discovered" them.
Moving Thanksgiving, a holiday that has long celebrated colonial and Native American cooperation, to Columbus's birthday will make the day more inclusive, gives the United States a true autumnal/harvest holiday, and unites a swath of the North American continent in a day of thanks.
Commercially, if that's your thing, moving Thanksgiving to October will extend fourth quarter retail bonanza associated with religious and secular solstice celebration.