There were big wolves in Yellow stone national park and they would kill goats and livestocks of farmers. So wolves were killed by farmers to near extinction. Now Coyotes (small wolves) took over and they started killing calf of deers and other animals. So the ecosystem of yellow stone was in trouble. So park authorities released big wolves again in yellow stone and wolves started killing coyotes or chased them away. Now the ecosystem is coming back to normal. The same applies to human society. If big strong men and women leave then criminals (Obama) will take over and they will kill children. The world society is surviving because of big strong men and women.