Why is there such a big gap between the income of immigrants to Canada and that of locals?

Well, this question should be easily linked. The language of the local people is not a problem, and cultural understanding and habits are natural to them. When a person immigrates, he must not only overcome the language difficulties, but also try to integrate into their circle. This is what employers and hr should consider in the job market, unless you are an excellent immigrant.

Moreover, local people should be given priority in general important positions or key positions. Why do many employers in the market sponsor immigrants? Because it's all dirty work that locals don't want to do, they recruit foreigners internationally to develop their own construction there. Remember that it's dirty work and hard work, and you get the minimum wage. Still, you are eager to go.