More, but not exlusive
Yes free speech is more than this, but it also should include this.
I too feel this obscene, and cringe a bit when driving behind a half-wit with these strapped to his truck when my young daughter is in the car.
But I still think this qualifies as free speech: for one many have made the valid point that even if you live in the city, nuts are on animals and we don't put diapers on them, to suggest so would make you look stupid.
Put this way... we have the first amendment so that what is offensive to me isn't automatically illegal, and in this system, what I enjoy or find funny, that others find obscene is also protected.
Plus there is any EASY WAY TO FIX THIS, as far as I am concerned cutting the suckers off with a box cutter is also protected as an act of free speech.
A.) There is no better way to emasculate (literally) a red-neck than cutting the nuts off his truck.
B.) Most Red-necks simply can't afford to keep replacing something that costs $20 or more.
So quiet down, put a box cutter in your glove-box, and the next time you see someone dumb enough to leave their balls hanging out unprotected you give them a good reminder of why we keep these in our pants!!!!