It wouldn't be nearly as easy for Americans to accept mandatory quarantines because for one we need to get out and earn a living, we have kids to provide for and care for, mortgages to pay etc. Chinese are slave anyway, it's not like a Capitalist country they live in, the state will provide for them, the state owns them. I don't see how our government would have the right to drag us out of our own homes.
But you make my point: Is a public health threat like SARS something that Americans will take so seriously that they will honor home quarantines if that is needed? I doubt it. And that makes me say that SARS in the good ole USA will not be easy to contain.