Based on some of the recent threads I've participated in here, many folks would welcome global governance so long as it was "privatized" and run by a multinational corporation.
Unfortunately, we now live in a country where people no longer have loyalties to our Constitutional Republic. The massive influx of immigrants means that many of those folks have loyalties to their homeland or culture. And most native Americans have no loyalty beyond the pursuit of a quick buck.
Sad but true. Add fear and hunger to the mix, and people would support any dictator who promised to restock the grocery shelves.