The excerpt from Passage 1 that contradicts the ideas presented in Passage 2 is:
". . . cuddly robots will unfairly lead people with dementia to care for uncaring machines. (paragraph 1)"
This statement suggests a negative view of robots, implying that they cannot provide genuine care or empathy, while the ideas in Passage 2 acknowledge the potential usefulness of robot companions as an alternative when human caregivers are insufficient, indicating that robots can provide some level of comfort and companionship.