Once again, democrats want to view the world through the eyes of an appeaser, and that the dangers of islamic terrorism are some myth that Republicans created. Democrats are dangerous, not someones military background.
I agree with you that Harkin made a stupid comment. Your error is in taking his words and saying that they represent all democrats. Doing that would be akin to saying that since Allen made his 'macaca' comment that all republicans are racist. It's one man's opinion and yes, it's dumb. In fact, Harkin is attacking members of his own party in saying that-
Jim Webb was a Marine platoon commander in Vietnam, John Murtha, Al Gore and John Kerry all served in Vietnam, Jimmy Carter was a submarine commander, JFK fought in WW2.... so saying that democrats are a bunch of crazy peaceniks with no understanding of the military is simply blatantly false. In fact, Jim Webb is one of the very few senators that actually had a son who served in Iraq.... an oddity since the children of most senators tend to be "priviledged" sons.