Let me think... Egypt? LOL The problem is that resolve is not enough. See below.
Both, actually. But let me ask you these questions. That 'go through with it' thing - can you clarify what exactly those protesters want to go through with? Revolutions require blood and violence. That's a sad fact. Revolutions usually ruin economies completely. Those protesters' lives will be much worse if they succeed. Besides, what are their goals? What is their program? Who is their leader? Imagine those capitalists appear and surrender. What's next? Right now they're nothing more than a poorly organzied mob (well, let's hope it isn't organized). Pray it wouldn't taste blood and the police can handle it. If not - there'll be another London. There's more - such movements gain a certain magnitude and without anything happening they either explode or disappear (people will simply grow tired and leave the Wall St. for good).
I know it may shock someone, but if they really want the capitalists to change something they ought to start hanging the wrong guys. I'm serious (to answer your question 'what should people be doing instead'). See above - revolutions require blood. Read Marx - he proved that. The only way the lower classes can overthrow the top is through violence. Their problem is - they're still lacking the guy who'd tell them who exactly the 'wrong guys' are.
What these people want? To get rid of the banks? They can try that, of course, but I doubt they'll find their lives changed to good afterwards. No, I don't believe the Americans will go this far.
P.S. Unlike many of my countrymen I respect the Americans and not as prejudiced as I may seem. My quarrel is with your government, not the people. Some of the Americans I know personally are quite nice.