They weren’t doing anything weirder or more brutal than Europeans. Europeans burned an associate of Martin Luther at the stake merely for a difference of opinion on a theological matter.
Administering a flogging so serious the victim could die from the wounds was common in colonial America.
Then there is keelhauling... for those in the Navy.
Humanity is pretty rotten throughout the world; no one has a monopoly on evil, no one can really brag about being above it.
“Then there is keelhauling... for those in the Navy.”
There are no records of anyone being keel hauled in either the Continental or the United States Navy. Now, 50 lashes with the cat was another story.