/u/lngwstksgk, think you have an answer for this?

Actually, the Jacobite army of 1745 was comprised of only about 1/3 Highlanders, the rest were English, Lowlanders, some Irish and French. With that said, not all Scots backed Prince Charlie and remained neutral throughout the Rising. There were Highlanders and Lowlanders on the Hanover side as well (Black Watch). The Scots didn't turn their back on the monarchy, I'd argue most accepted that King George was the rightful king after the defeat at Culloden.

I have no research done on Charlie and his opinions on the American Revolution, I'm not even sure he was still relevant to Scots or society at that point. He had a pretty sad life after then. However, other Jacobites did have opinions on the American Revolution: they were against it for the most part. Allan and Flora MacDonald (Yes, the same Flora who helped Charles escape Scotland) recruited Highlanders for a Loyalist Battalion at the outbreak of war. Simon Fraser of Lovat (Son of Simon Fraser the 11th Lord of Lovat) fought with his father at Culloden but later on became a general in the British army to "atone" for his mistakes and raised the 71st Highland Regiment in both the Seven Years War and the American Revolution. Other former Jacobites did the same with joining the British army in either Regular or Highland Regiments to show their new loyalty to the Hanover government, especially after the Act of Proscription in '47 started to affect their culture by banning tartan and wearing of arms. Scottish politics have always been "a mixed bag."

Michael Newton "Jacobite Past, Loyalist Present"

Steven Brumwell Redcoats: The British Soldier and War in the Americas, 1755-1763