Children all over the world should be cared for, not just ours. The entire world....we are all one.In some countries, the population is over ran with mouths they can't afford to feed because of the high numbers of rape.The way to help those countries is castration. In the USA, don't support the poor if they keep having kids.
As for changing the world, I believe in changing the country you live in first. When there is no more homeless and starving kids, then go beyond the borders.
The world needs us to stop separating everyone. Take care of our children but not all the children of the world. That's not how I want it. We are one planet. They are all our children.