In the world of Black Panther, Killmonger's plan to arm African descendants across the globe represents the beginning stages of the Pan-African ideal, where Blacks all over the world fight for liberation by any means necessary.

He's a villain, he murdered at least one unarmed person in cold blood and his plan was to use advanced technology to wage a bloody and violent uprising. It was to take control through power and death.

Also I think T'Challa (the protaganist) was a fed or had a deal with the US