Multiple agenda strategy.
Flood the country with foreign workers.
wealth transfer out of the country.
Displace us workers out of the job market.
Increase male unemployment.
Increase stress on normal families.
Continue eroding and damaging us economy.
Erode middle class.
Erode power of masses by depriving them of money.
Increase govt dependency of affected population.
And you could probably add in a multitude of other negative impacts on society.