Holding the U.S. accountable for the war on terror isn't going to happen. The rest of us need to hold our own politicians accountable for collaborating with the U.S. though.
So your country goes against the US, the US retaliates by stopping trade. People in your country lose jobs, people demand the govt to fix things, what is your govt going to do then?
It easy to say our politicians should be accountable, real life is more complicated though.
Denmark was obviously just an example, but there are a lot of U.S. allies, trading partners and so on, that all have assisted or participated in the war on terror.
Besides, the Democrats could probably just blame it on Bush anyway.
Once Russia starts making some noise, all European countries will need US protection.