I’d never heard of Black Friday until I moved to Ontario in 2006. It has nothing to do with any holiday in Canada. I think the internet has made it international.

Face it, we are all Americans!

same in the UK, this week I am in Spain and can confirm that it is the same here

Exporting only the very best of the most meaningful cultural elements from the USA to the world!!

Yeah, same in Germany. Did you also receive Halloween and Valentine's Day?

Black Friday has nothing to do with Thanksgiving. It’s all to do with bringing the books into the black toward the end of the last quarter of the year.

Fake sales here in last few years called Black Friday.
US commercial cultural imperialism.
Thanksgiving is practically a 19th C invention in USA made in to an official holiday later to promote shopping:
President Franklin D. Roosevelt moved it 1 week earlier, observed between 1939 and 1941 amid significant controversy. A 1942 act of Congress made Thanksgiving the 4th Thursday in November.
Hardly existed before 18th.
Lots of Myth.

This Wikipedia page is crazy because the only connection between most is the "Thanksgiving" and in reality none have a USA connection.
https://en.wikipedia.org/wiki/Thanksgiving
That page should be only a disambiguation page. It's essentially dishonest promotion of USA Thanksgiving as a global thing.
The Pilgrim Fathers were nasty colonists that left Amsterdam because it was too free. No wonder it led to Salem.

This might be helpful to some readers and commenters on the definitely American origins of #BlackFriday :
https://www.britannica.com/story/why-is-it-called-black-friday

same here.