BO is serving UN Agenda 21, in which eradicating the US-Mexico border is included. This is so there will be no wealthy people or poor people in the US but all become equally dependent on the government.

Bipartisan Governor Union Standing Up Against Obama’s Plan

And when he fails to cram it down on America's throat, the UN emerges from the background and takes over.

U.N. seeking to 'intervene' in U.S. border crisis