I truly wonder about the level of historic knowledge among most people in the world.
On the Left in the United States there is the preposterous notion that Islam is not a threat to Western progress.
Some on the Left argue that there will be a modernization of Islam that will create tolerance. Others argue that Islam at its core is a peaceful religion and that only extremists are visible and dangerous.
We have a history of religion in the West that goes back several thousand years. We have a history of a single christian church that was dominant in Europe and much of the rest of the world for 300 years until Islam drove it out of the desert and South Asian belt. It remained dominant in Europe for the next 1200 years, regularly fighting Islam at full Army strength.
That Catholic Church never stopped fighting nor showing its intolerance until roughly 1960. I lived before 1960 and I know that the Catholic Church promoted hatred of Jews and Protestants throughout the lands in which it had control from Mexico on the American border to Antarctica. It had been fighting against Protestantism and the Masonic Order for the previous 500 years. Fighting as in the word Army. Fighting as in the word Irish Republican Army.
There is no evidence whatsoever that a majority of individuals in the Catholic Church considered this belligerent, aggressive, intolerant behavior to be unacceptable to them. If they had they would have left the Church and started an off-shoot. There were only a few offshoots and most of them were as intolerant bigoted and warlike as the mother church.
The same is true for current Islam. Muslims are not spliting off to form 'tolerant' sub-orders. Nor are they swelling the few tiny existing sub-orders (Sufism).
With a genuine knowledge of the history of religion, I cannot find any possible logic that would expect Islam to become a peaceful religion; they will be attempting to kill all non-Islamists for ever. Forever.