If you have courage, then you're willing to face that really stinky mess in the garage and clean it up.
You have faith you can clean it up, because you've cleaned up other really stinky messes, or seen other people do it. In other words, you have faith because you have experience of succeeding in the past.
Now Americans don't have much faith that we can throw out a bunch of murdering, psychotic tyrants (excuse my French). Why? Because we don't have experience succeeding against such people.
Fat and Happy
Moreover, we Americans have led a very pampered life for the past couple of decades. Sure, there has been inequality and exploitation, and some have had it a lot worse than others. But, other than stopping extreme forms of racism (Ku Klux Klan, etc.), we haven't had to defend our borders or our liberties.
And even those of us who think of ourselves as brave heroes usually only act like that when we know it is within the bounds of safety, within the limits of what we can handle. "Tough guys" tend to turn into meek mice whenever they are really threatened.
So we're basically lazy and timid, but we don't know or admit it. We like to pretend we are like the Founding Fathers or John Wayne (at least the cowboys had to rough it a little).
But we have no experience of successfully standing up to tyrants, so we have no faith that it can be done, and while the evidence is right before our noses that our current leaders are tyrants, we're so terrified that we have our knickers in a bunch.
What Would They Do?
Even if you haven't experienced success in standing up to tyrants, remember that the Founding Fathers did just that. They were just men, not gods. Sure, they were too persistent and stubborn to give up, but that's because they CARED about something: freedom.
There is a real misunderstanding of what it means to be courageous. In America, courage is often thought of as a testosterone-driven toughness. There's nothing the matter with testosterone. Masculinity is a great thing. But many American men secretly fear that they don't have sufficient testosterone to really be brave when the chips are down. As I said above, even those of us who think of ourselves as brave men usually only act like that when we know it is within the bounds of safety, within the limits of what we can handle.