“Have you ever heard of the great Catholic miracle that kept Europe from speaking Arabic. Too bad it’s not happening these days.”...So, it’s not a miracle, just military happenstance. Correct?
Ummm, Pope St. Pius V led Europe's Catholics in a rosary crusade imploring God's assistance in what wold become the Battle of Lepanto (10/7/1571). The Catholic navy was slightly outnumbered but had superior artillery/cannons on board many of its ships. The Catholic naval forces (the Holy League) under the command of Don Juan of Austria, sank 210 ships of about 240 of the Turkish Muslims' fleet which went to the bottom of the Mediterranean along with any Muslim pretense of using naval forces to facilitate conquering Christian Europe. The Church established October 7 as the Feast of Our Lady of the Rosary and also began devotions to Our Lady of Victory.
You are apparently not Catholic. Ours is certainly, even now, a free country and you are free to disagree or to scoff as are Catholics to believe.
See also the 9/11-9/12/1683 lifting of the Muslim Siege of Vienna by mostly Polish forces under King Jan Sobieski in which the Muslims were routed. Their commander, Kara Mustafa, was executed thereafter (by formal strangulation) at Belgrade (12/25/1683) as a result of his loss. The Muslims were so shamed that they attack Western Civilization with some regularity on 9/11 of various years. Nonetheless, the Muslims have never made another significant military attempt against Europe by land.
It may well be that allowing Muslim immigration into Europe to replace the children that so many Europeans have been too self-centered or lazy to bear in their advancing apostasy from all forms of Christianity may accomplish for Islam what the Muslim military never could.
Christians need to unite in the face of such challenges rather than continuing the endless intramural food fight over religious differences among us. Instead, let's concentrate on the 95% on which there is agreement, concede that Jesus Christ's flock would not and probably will not be as one, but serve Him in all things according to our own insights and faiths. It is also, as always, a wise strategy to keep our powder dry and to be ready militarily to help ourselves with His help.
The power of intercessory prayer and God's assistance had much to do with these military successes. Perhaps you are not a believer at all. If so, thank the military commanders: Don Juan of Austria and King Jan Sobieski for your good fortune in not being up speaking Arabic or being oppressed by "Sharia Law."