I tried posting about this multiple times, but nearly all of my comments on youtube are deleted. You cannot talk about age restrictions, youtube policies that essentially amount to genocide denial or alternatives to youtube in youtube comments. They will get deleted, probably by an automated system. Tried to poke holes into it by talking in code, but even that doesn't help.
Those looking for an alternative way to get access to videos censored by youtube, I suggest using FreeTube which is a opensource frontend for youtube. It essentially replaces the youtube website while still giving you access to the youtube library. No restrictions, no google account(or any other account for that matter) needed. All subscriptions and viewing history is stored on your computer.
The archive is here
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https://utreon.com/c/kraut/videos/kraut
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All the alt-right stuff is here. A few goldens include the Milo video, his two videos on Battlefield V, and the first minute of WE WUZ HUITEZ. Granted, the last video has a shit ton of lore required, but the shitpost is amazing regardless of context.
Well, brazilian history in wikipedia is already very plentiful.
If you want to go deeper and remove a scorpion out of your pocket you could read Brazil: A biography. A book with almost 800 pages of brazilian history. Best source in english.