Many of them live in a fantasy world (maybe Leftworld(TM) for most). I've met them, they scare the hell out of me, and they should scare you, too. They're scariest in larval stages.

Fortunately, that fantasy world will die a cruel death shortly after they receive their first real paycheck (at least that's how it works for college grads). "Save the world" sees a quick demise when they see how much of their cash goes to Washington and never comes back.

Without what is going on right now, unfortunately, many people would NEVER realize the value of the military.

As for "supporting the troops" while protesting, the Left has a great way of standing for logical inconsistencies, as a matter of course.