According to Sterling K. Brown in an interview with ABC, Killmonger’s (and his own character, N’Jobu) intentions are honorable, but ultimately his methods won’t result in meaningful or good change.
In the movie, Killmonger essentially wants to arm the disenfranchised with Wakandan weaponry so that they can rise up against their oppressors.
This comes from a place of clear pain due to something that happened in Killmonger’s past.
It’s what makes Killmonger such a sympathetic character, but one can’t forget that he plans to accomplish his goals by killing anyone in his way and then probably a lot more people after that.