There you go again with the "true American" label!
You can only be a true American if you PARENTS were born here? Go check out a Naturalization Ceremony some time. These people are in tears and overjoyed with their new American status, and most know more about American history than the average...
Yes, this BS stopped for a while back then, but the world doesn't stop revolving because an anniversary rolls around.
What about Memorial Day or Veteran's Day, how 'bout December 7th?