Parents of people in the military are often more military-loving than their children in the military. Here is a truck with two Marine Corps bumper stickers and what looks like some other Marine Corps stickers as well. The left sticker says: "Whose Son Is Fighting in Place of Yours?" The right one says: "Carpenters hammer nails. Plumbers fix pipes. Marines kill people."
If this guy's son is fighting somewhere it is not in the place of either of mine. There is no need for any American's son to go and fight anywhere. The statement about Marines killing people is reprehensible but honest.