Unable to gain any traction on the immigration or employment front, they then fall prey to employers - mostly their compatriots - who exploit them at pay rates that beggar belief.
An Indian-owned Auckland restaurant was last year found to have paid its workers, also from India, a paltry $2.64 an hour.
The business owners received home detention for treating their staff like slaves.
Immigration NZ also needs to put into place measures to penalise foreign students who agree to work in conditions that are in breach of labour and immigration laws.
Those who allow themselves to be exploited don't deserve any sympathy.
Unsurprisingly, those being exploited come from countries with various levels of poverty, such as India and Fiji, and they will try every means possible not to return to those conditions.
If the Government is not prepared to stop the flood of migrants settling predominantly in the City of Sails and ever-rising student numbers it should be prepared to deal with both the exploiters and the exploited.
More oversight of employers, regular inspections and raids, stiffer penalties, and controlled migration and issuance of student visas are inevitable.
-Imran Ali is a Fijian-born Northern Advocate journalist.