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human
[Dragon Ball Z] In Future Trunks's timeline, why were the androids destroying everything?

Did they want revenge against a world that wronged them? Did they just enjoy killing, Krombopulos Michael style? Or did they have some larger goal like world domination?
gpt
In his timeline the androids were programmed to kill Goku, and like in main timeline they seemed to revolt against Doctor Wily on basis of him telling them what to do. However there's no stated reason for their different personality, other than it being a different timeline. Maybe Trunks is like Flash, and made his own Flashpoint by saving Goku. 

It's possible that since Goku died from a heart disease prior to their activation, they caused destruction by being unable to fulfill their primary objective. But it seemed that Future Androids had a depraved kind of fun by destroying civilization. They clearly didn't have any plans to take over the world, and just relished in their power and destruction.