(which among other things mentioned "putting an end to a scourge, which has so long desolated Africa, degraded Europe, and afflicted humanity.")
I see it more as the beginnings of US regional Hegemony and notable for two things, how it began and future attitudes to world affairs.
In the beginning (from the wikipedia link):
Great Britain shared the general objective of the Monroe Doctrine, and even wanted to declare a joint statement to keep other European powers from further colonizing the New World. The British feared their trade with the New World would be harmed if the other European powers further colonized it. In fact, for many years after the doctrine took effect, Britain, through the Royal Navy, was the sole nation enforcing it, the U.S. lacking sufficient naval capability.
In real politik the thirteen colonies were business investment startups by British Venture Capitalists who retained contacts, contracts, and business ties after reducing the meddling abilities of that pesky king in finnancial arrangements.
The now independent colonies and new independent nation remaind largely Anglophile while the old order saw no conflict of interest in the use of their navy in the defence of mutual interest.
Foggy Bottom* has always been a part of Oceania?
* pedantry: the actual State Dep't were in Philadelphia at the time
Lagniappe: https://en.wikipedia.org/wiki/The_Influence_of_Sea_Power_upo...
EDIT: looking at en.wikipedia's entry for the results of the War of 1812, it offers pretty heavy evidence for your position:
- Anglo–American status quo ante bellum
- Spanish control over West Florida weakened and Mobile territory claimed
- Tecumseh's confederacy decisively defeated and dissolved
I think it strange to have a war that doesn't alter the positions of the principals, but does allow them to take a few third parties off the board; on the other hand that just may be my naivete.
Come to think of it, the causus belli of 1812 was Royal Navy impressment of US sailors: I can easily imagine some Sir "stick close to your desks and never go to sea" Joseph being surprised and wondering why the americans had been so confused as to miss the main point: providing manpower for Britannia's rule of the waves was in their own best interests, after all.