
Originally Posted by
StupidAlarmClockGuy
It's true that the Arab Conquests were welcomed by those persecuted as heretics by the ERE, such as the Monophysites and Nestorians, but it wasn't like these people just suddenly converted to Islam. Not at all. Look at Iran, which was the earliest significant convert and which was not "totally" converted to Islam until the 9th or 10th century. Egypt is accepted as being a particularly late convert to Islam, so what's to say that it didn't take them a few more centuries to convert, especially keeping in mind that even now, potentially over 10 percent of the Egyptian population is Coptic Christian (remember, Copts are persecuted in Egypt, so they're not going to be parading their faith around), Egypt has been ruled by Muslims for over a millenium, and Egypt was almost exclusively Christian when it got conquered by the Arabs. Check out an article called "Coptic Conversion to Islam under the Bahri Mamluks" which points out the consistent backsliding that Coptic "converts" to Islam underwent and the sheer size of Coptic religious "infrastructure" in Cairo alone. And this was in the very late 13th century and the first half of the 14th century.
This is one of those situations where the position is not so much "We're sure they were all Coptic" as it is "We're sure they were originally Coptic and Egypt converted really slowly, so why guess that they were all Muslims when there's evidence pointing out that many weren't?"
The case of Syria is a pretty similar one. Also remember for these that most Muslim leaders (particularly earlier ones) were really lax about conversion. Most Dhimmi had little to no impetus to convert until crackdowns started happening and even then, a lot of them were converts in name only.