It was about a robot who had exterminated all organic life in the universe, but hates his job, and later gets divorced by his wife. He also has a son that curses a lot, and later saves his world from aliens.
D4VE by Ryan Ferrier
Primetime TV; mortgages; traffic jams. The robots conquered earth, wiping out all life in the galaxy, but nothing changed. Meet D4VE, the greatest robot war hero, now trapped behind a desk at a soul-sucking day job. Can something, somewhere snap him out of this slump? Will a new presence on 34RTH ignite his long-lost spark for battle?
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The robots rose up and destroyed us...but were unable to escape the legacy of human thinking, so continue to exist in a simulacrum of late capitalism, where Bad Boys 5 has just been released, mild cursing runs to 'Jobsdamned' and 'William H Gates', and a robot husband haplessly claims the shop was out of oil despite it being the only thing they consume. D4VE was a war hero once; now he's a schlub with an office job he hates, an arsehole boss he hates, and a newly-ordered teenage son who doesn't respect him and is constantly wanking. Despite, as I may have mentioned, all of them being robots. But then, oh happy day, a time again comes when the robots need somebody to kick some ass while delivering improbable one-liners...
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funny comic book robot exterminates all human life