Keep in mind Marxists and Socialists helped topple the regime. From the NY Times:

As my colleague Anthony Shadid reports, tens of thousands of Egyptians poured into Tahrir Square on Friday for a day that had been billed as one of unified protest against the interim military government. But the turnout was lopsided, dominated by members of religious movements, ranging from the most conservative, the Salafists, to the relatively moderate Muslim Brotherhood.

According to The Associated Press, instead of chanting “The people want to topple the regime,” a slogan heard at protests across the Arab world this year, from Tahrir Square to Tunisia, demonstrators called out, “The people want to implement Sharia,” a strict code of Islamic law.

This video, which was posted on YouTube on Friday, is said to show the Salafists, many of them wearing skullcaps and conservative attire, walking toward Tahrir Square. Men in T-shirts and baseball caps look on as they pass by.