Train children to have empathy.
Empathy is knowing what others are feeling. Sympathy is agreeing with that feeling. Agreeing is less important. Sometimes it's even dangerous.
The world is perishing because people ignore the feelings - the humanity - of others. We've imbibed too much of the attitudes of wife beaters [and torturers and psycho-killers - not to mention child abusers] from our culture.
One generation, taught kindness and respect by example by their parents, will completely transform the world. DeMause's research shows that those things have been improving at an accelerating pace since the beginning of history. It's not all hopeless.