Ok, so I used to listen to this Canadian hip hop artist years ago and I cannot for the life of me remember his name. Despite all of the (very specific) details I have about him I can't find the fucker.
If any of you know who I am talking about, please help me find this artist. These are all the details that I know:
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Canadian (I think from Ontario)
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Black
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Older
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Has a song called "Fuck a liberal" and "Amerikkka"
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Has other songs calling out the genocide carried out by Canada on the first nations people
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Used audio samples of former Prime Minister Stepher Harper in at least one of his songs
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Had music on streaming apps like Apple music
I'm hoping at least one of you also used to listen to him and can hook me up 
Jay Rukas? Toronto based.
Website
Amerikkka
No idea, just did a quick web search and he hits most of your points, I'm not going thru the whole back catalog to confirm samples and lyrics tho.
Good guess, checks a lot of boxes, but I don't think this is the guy. Thanks for the effort though cheers!