Idolatry is a sin, kids.
This kind of "wrap myself in the flag and put a yellow magnet ribbon on the back of the SUV" kind of "patriotism" offends me on such a deep, basic level... it really angers me that they would dare to criticize someone for kneeling during the national anthem.
Conservatives idolize the flag. They have turned it into an object of worship. They don't give a flying f**k what that flag represents. Only that it is there and that you go through some kind of idiotic motion to prove to them how much you "respect" it.
All of this is true. The flag means as much to Americans as Jesus does to most American "Christians."