Of course they are! Their silent stones will not submit to the Rule of Allah! Therefore, they must be destroyed! Just like those timeless and wonderful Hindu sculptures that were erased from human history by the total idiots who can't seem to extricate themselves from the seventh century who are running the Taliban. Not to mention their moronic, "stepford wife" followers....
[Idle question: Is there any institution in Egypt right now that can protect the Sphinx from salafist desecration??? As a sometime student of Egypt's storied, magnificent past, and a possible future tourist, I would like to know the answer to that question.]
From my POV (FWIW), the Salafist and Muslim Brotherhood state of culture resembles most closely that of a pack of wild dogs — that most "unclean" of animals in the sight of Islam. Only dogs treat their bitches better.
Thanks for your great observations, Conspiracy Guy.