America will be flooded with illegal immigrants who destroy the economy buy working for less and having less education (by 2050 30 percent of southwest America's workforce won't have a high school diploma due to high levels of illegal latino immigration and less and less spending on education in favor of entitlements). The average american wage will be 6,000 dollars less than it is today (without adjusting for inflation). Money will be poured into programs like welfare and other entitlements to keep the southwest afloat but that the country will be unable to afford due to its crippled workforce and unwillingness to make budget cuts. America descends into a third world nation.
Basically the third world will overrun the first and everything is downhill from there. Those are factual projections for the US but I doubt the rest of the world will do much better.
This could be prevented of course, but politicians don't have the will to do what is necessary.
Time for hype
