Who are migrant workers
The Canadian Council for Refugees uses a broad definition. "Migrant workers" refers to workers participating in the Temporary Foreign Worker Program (TFWP), which includes the Caregiver Program, or in the Seasonal Agricultural Worker Program (SAWP). TFWs (Temporary Foreign Workers) is used to talk about workers in the TFWP (including caregivers, where they are not referred to specifically).
The Philippines has a culture of migration that is now enforced by government policy:
Human Capital: The Philippines Labour Export Model (World Politics Review, 2015)
Exploitation of foreign workers in Canada
Abuse of the Temporary Foreign Worker (TFW) Program has been common in Canada: