Two social workers have left their office and are walking to their cars. They come upon a man, obviously robbed and beaten, lying bleeding and unconscious in the gutter. As they walk past, one social worker turns to the other and says, "You know, whoever did that really needs our help".
Under the circumstances, not a very funny story but your post brought it to mind. Liberals seldom have any concern for the real victims.
Liberals do not believe in individual rights or individual (personal) responsibility, and instead believe in "group rights" which cannot be invoked by any individual, and "group responsibility" which cannot be applied to any responsible individual.
In contrast, conservatives believe in both individual rights and individual (personal) responsibility.
Thus, conservatism is superior to and more practical than liberalism, AKA socialism and communism.
- FraudFactor.com
The joke makes an important and serious point about the liberal Democrat view of violent crime, and does not imply there is anyting humorous about these serious violent crimes.