Ask them what they hope to win. You can sit there and make endless arguments to defend your view that half of humanity is awful. Until eventually everyone just gives up arguing. Now what? There is a next day. The victim mentality is not even self-serving. At most it lets you know how badly your life went, but far more often it skews your view of the events and gives you nothing to work with moving forward except a desire to hurt others.

Tell them they won and ask them what they want to do next.