Non-patriots insist that the American flag is nothing but a piece of cloth to be walked on, burned, spit upon and degradated in any manner imaginable. They have a court-determined right to do so, flag desecration having been declared to be "speech."
Yet they invest their time and energy in the aforementioned acts, after gathering as large a public audience as they can manage, solely because they want to anger and to hurt those who hold that the flag symbolizes this nation.
Non-patriots care nothing for the American flag, they care only for whatever anger and pain they can engender in others with their public acts of vileness to the flag, and this seems, for many of them, to be a thing that gives their lives meaning. There's a pathology there, a deliberate torture of others for the sole reason OF torture, as no other profit can be imagined...