I don't think it is clearly perceived as such, rather a petulant and ineffective symbolic insult at a unifying anthem...

It is so perceived by Trumpists and their apopogists of the "half-baked, spurious nationalism cooked up by people who would rather find scapegoats than solve problems" type (vide McCain speech)- not by anypne who has been paying attention to what is and has been actually going on.