In all fairness to our muzzie friends, there have been periods of time when predominantly moslem countries have shown tolerance toward Christian minorities. They tend to be brutal secular rulers, and I suspect the motivation for religious tolerance is to keep the fanatical religious zealots in line. Saddam Hussein is a classic example; the Chaldean Christians had far more protection than under the current regime. Or maybe he was just egalitarian in his repression of everyone.
But on the whole of the history of the moslem world, these are isolated oases of tolerance in a sea of religious repression. For the Koran does not have the equivalent verse to “render to Ceasar.” The religious rulers do not recognize a separation of church and state and an independent secular authority. Wherever the imams hold prominent places in public life, violent repression of Christians, Jews and other religions is usually present.
There's also the motivation that the Christian minorities are more economically productive than the Muslim majority, and thus are a source of tax revenue.