There was an animated movie I watched around ten years ago about a child whose mom was kidnapped by aliens that wanted to transfer her motherly instincts into robot caretakers for their species. Then, the boy goes on an adventure to save her. Unfortunately, I forgot the name of the movie. Does anyone have an idea of what it is?
It is Mars Needs Moms:
...The Martians decide to bring Milo's mother to Mars, where her "momness" will be extracted and implanted into the next generation of nannybots.
Later that night, Milo goes to apologize, but discovers his mom is being abducted. He runs after her, but they end up in separate parts of the Martian spaceship...
ps. search string: animation aliens captured mother