John O'Sullivan (via Real Clear Politics) put it well:
In other words, many Democrats, their media allies, and others in the permanent Washington establishment are defeatist. A defeatist is not just someone who thinks his side will lose. Sometimes a prediction of defeat is realistic. A defeatist is someone who, at some level, expects to lose, even wants to lose, seeing a quagmire in every oasis. His dissent is therefore tainted.
We are not supposed, of course, to criticize such dissent. No, we have to call it patriotism.
The Left likes to deride patriotism, so why do they insist on being called patriotic when they urge defeat? Their so-called love is indeed tainted.
Now I know I've got to
Run away I've got to
Get away
Or maybe it makes more sense in the original French.