Captain, you are so right.
But it is not that we didn't know about Islam's intentions since before the Crusades. We just choose to ignore the reality of a 'religion' that is evil. Here is what Winston Churchil wrote about Islam and its impact on civilization:
A quote from an 1899 book by Winston Churchill, "The River War", in which he describes Muslims he apparently observed during Kitchener's campaign in the Sudan
How dreadful are the curses which Mohammedanism lays on its votaries! Besides the fanatical frenzy, which is as dangerous in a man as hydrophobia in a dog, there is this fearful fatalistic apathy. The effects are apparent in many countries. Improvident habits, slovenly systems of agriculture, sluggish methods of commerce, and insecurity of property exist wherever the followers of the Prophet rule or live. A degraded sensualism deprives this life of its grace and refinement; the next of its dignity and sanctity. The fact that in Mohammedan law every woman must belong to some man as his absolute property - either as a child, a wife, or a concubine - must delay the final extinction of slavery until the faith of Islam has ceased to be a great power among men.
Individual Moslems may show splendid qualities. Thousands become the brave and loyal soldiers of the Queen; all know how to die; but the influence of the religion paralyses the social development of those who follow it. No stronger retrograde force exists in the world. Far from being moribund, Mohammedanism is a militant and proselytizing faith. It has already spread throughout Central Africa, raising fearless warriors at every step; and were it not that Christianity is sheltered in the strong arms of science - the science against which it had vainly struggled - the civilization of modern Europe might fall, as fell the civilization of ancient Rome.
Coincidentally I posted a few minutes ago on another FR thread essentialy the same take as you have.
Muslims have been outspoken in their desires to make Islam dominate the world.
Infidels ignore this, because it means a fight.
Kicking the can down the road is the preferred Infidel option.
Islam isnt like an illness that will eventually go away.
It is like cancer that is spreading.