You shouldn't hate people with mental or physical disabilities.
Jeff and Mary are discussing their opinions about disabled people.
Jeff wants to form an opinon about the disabled.
Jeff decides that just because disabled people are restricted in one way doesn't mean they're restricted period and vows to help them.
Jeff decides that since disabled people are restricted in some ways, that he thinks they should all die and doesn't want them around.
Mary is delighted that Jeff is so open minded and willing to help fellow humans.
Mary is disgusted by Jeff's sociopathy and decides to leave right away.