I would consider the facts but where are they?
The War of 1812 was fought against the British and their Indian allies. No mention of African Americans, blacks, or slaves is mentioned here.
https://en.wikipedia.org/wiki/Origins_of_the_War_of_1812
The attempt to "grab" Canada is nothing more than a supposition.
I'm sure that the annexation of Canada crossed the Americans mind, but when the Brits ceased their support of the Indians, American attacks across the border ceased.
The British ceased aiding First Nation attacks on American territory, and the United States never again attempted to invade Canada. Apart from minor raids, it has remained peaceful.[1]
Kaepernick probably cant recite the first verse of the Star Spangled Banner let alone the 2nd and 3rd. His beef isn't with the National Anthem or the War of 1812 which he also knows squat about...so the idiot who wrote up this piece is acting as Kaeps self appointed representative and is merely making excuses for his behavior.