The US had a founding ideal: equality under the law and of opportunity. Falling short of this ideal (and, boy, have we fallen short for so long), is the real disrespect.
For me worshiping the symbols themselves without understanding what they represent is hypocritical. I also don't have to pledge allegiance to the flag or to the anthem itself or even to the president! I support the constitution and ideals upon which this country was founded, such as--life, liberty, and the pursuit of happiness!