Considering the insult, may be the car driver is just a "flag waving, war loving, homophobic, yellow-ribbon-on-gas-guzzling-SUV, 'patriot'" angry at someone the

Considering the insult, may be the car driver is just a "flag waving, war loving, homophobic, yellow-ribbon-on-gas-guzzling-SUV, 'patriot'" angry at someone they consider to be a "latte sipping, tree hugging, segway riding, book reading, weed smoking, 'unamerican' atheist elitist hippie".