I believe you are incorrect on your date for the end of the Little Ice Age.
According to Encyclopedia Britannica: “Today some scientists use it to distinguish only the period 1500-1850, when mountain glaciers expanded to their greatest extent, but the phrase is more commonly applied to the broader period 1300-1850.”
That being said, I cannot disagree with the rest of your comment.
Still, whatever weather source you use, the connection between Muslim aggression and weather patterns in 1800 or 2015 is purely coincidental.
The only time we have NOT had widespread Muslim aggression since Mad Mo came on the scene is during periods of major smack downs such as the crusades, the years after major battles such as Tours (732), Lepanto (1571) and Vienna (1529 & 1683) or colonization (1860-1945). Colonization was, by far, the most effective strategy but has its consequences in allowing savage immigration back into the homelands of the former colonial powers.