Jim:  You're quite right.  However, in all fairness, what you and I may find "offensive" isn't necessarily so to those on the other end of the political spectrum.  For years as we drove to visit relatives in Longview, Washington we always "looked forward" to reading the "Uncle Sam" billboard on a farmer's land beside the freeway....I remember "Impeach Earl Warren" was one of them...yup, I'm dating myself just a bit.  

best regards,  Gary