This will be a very short and sweet take for anyone who doesn't understand the Betsy Ross nike furor.
The left is almost united in their stance now against the flag of the early United States, because the goal is to attack the foundation of the United States. If you can attack the foundation of a nation, you are attacking everything that came from it--destabilize the foundation of a building and the entire structure is weakened. Destroy the morale of a people, convince them their country is illegitimate, their heritage is horror, and you can persuade them to accept the rule of foreigners and bow to their new betters.
Was the United States ever perfect? No. No nation has ever been perfect. And there has never been a nation that achieved power and greatness that did not have rivers of blood and brutality in the foundation, nor do most nations apologize for it. Look into the history of South America, or African nations, or Asia. The only difference is they don't apologize as they do far worse than we have done. (or in the case of Africa, they claim it was Europeans fault after Africans failed to conquer it. And yes, they held Spain for hundreds of years, depopulated coastal cities for their slave trade, and the Turks alone reached the gates of Vienna trying to conquer Europe)
My fellow Americans... true Americans, not paperwork Americans---we are part of the heritage of the single greatest nation the world as ever seen. And now people who hail from far more brutal, far less civilized nations, want to slander it, demolish it, and remake it into the barbaric lands they escaped from.
Are we seriously going to let this happen?