You mentioned in an earlier post that the writer did not exegete the passage correctly. I concur with your assessment. However, to avoid the same problem on this thread, I suggest that we use a different passage to support your disgust. The Isaiah context is of course the Assyrian siege which ended badly for the Assyrians, but ultimately led to Israel being carried away by the Babylonians. Thus, what you intimate in your remarks is true, but not taught here.