Oh, I'm sure that R's realize it, they are just sick and tired of sticking the American tax payer for everyting, which includes the bill for the rest of the worlRAB "Police Force" and having the rest of the world not "chip in" to pay our bills.
Put another way, America has become something like MC Hammer. When Hammer had plenty of money, he was spreading it around. Once the money stopped and the bills came due, everyone abandoned him.
I honestly have a hard time figuring out who is worse ... the person who gives everyone everything, or the leeches who take everything they can, then when the good times end, run like cockroaches.