Such a meme as a “reform Islam” would not be entirely impossible — people can and do change even the most fundamental religious tenets in response to various pressures and enticements — but in the face of fundamental belief it would be terribly difficult to engineer, and by the time we finished trying, we might as well just have evangelized.
Imam agree that slavery is still permissible under Islam even if it is ‘politically incorrect’ to say so. The Imam will hedge their statement by saying that the slaves must be acquired under certain conditions (seized in holy war and then taken to ‘muslim territory’ before they are divvied up).
The laws of Mohammed cannot be repealed under Islam and they are incompatible with modern society.
60% of the muslims in America are first generation immigrants.
And some who come here reject the theocratic rule of Islamist nations. Yet some of the terrorists we’ve seen coming from England and the US reject the ‘Westernized’ or ‘diluted’ form of Islam of their parents and seek out the ‘radicalized’ or ‘fundamental’ Islam of Mohammed.
If the whole ball of wax can’t sustain several generations of peaceful progress, it will never take root.
After 1400 or so years of utter stagnation, odds are that any possible reformation of islam is most unlikely, if not impossible.