It's not a position with which he has any sympathy:
The message in effect is: moderate or silence your criticisms of some reactionary theocrat and/or murderous thug, for otherwise you give aid and comfort to the warmongers of the right. Should you enquire of such experts in the intricacy of political positioning whether they ought, then, to moderate their criticisms of Bush, Cheney and co, so as not to make life more comfortable for the Ahmadinejads and Hezbollahs of this world, you would find them reeling in shock at so flagrant a misunderstanding of the nature of their democratic obligations.Indeed.