I don't believe Canada lets "poor Quality" immigrants entering the Country, unless they claim Refugee status. With a refugee claim, under the charter of rights, Canada is liable to conduct an investigation regarding the claim and if the claim is found to be valid, Canada is responsible for accepting the individual/family as refugee. Apart from the refugee situation, Canada doesn't allow "Poor Quality" immigrants entering the country. As an immigrant myself, my process was unbelievably complicated and at the end of the day, the reason I was accepted is because of my education level and my skills and expertise. Although I do believe that an immigration reform is in order, to attract immigrants who are willing to integrate to the society.
Cheers,
S