And I'm not American in case you were referring to me.
At best you can say that one is simply being an unwitting vehicle of propaganda, but to claim that the public display of such a strong political symbol as a flag is not intended to spread and reinforce what it represents is just absurd.
While propaganda requires displaying symbols, displaying symbols does not necessarily entail propaganda. The entailment is simply not bidirectional, ie. surgery requires a scalpel, but cutting my steak with a scalpel does not make it surgery.
> At best you can say that one is simply being an unwitting vehicle of propaganda, but to claim that the public display of such a strong political symbol as a flag is not intended to spread and reinforce what it represents is just absurd.
No it's not. Someone who grew up on the Dukes of Hazzard maybe just really loved that car and associates it with great memories of a happy childhood. To call this "being an unwitting vehicle of propaganda" is losing the plot completely.