It's funny because unlike Europe, Canada has some of the most extreme vetting in the Western world and they can afford to be more selective in who they allow, as they haven't opened the doors so widely. An integrated society is ultimately a happier society, if you have persons who are marginalized and feel as if they have no chance to integrate completely then you have the chicken and egg problem faced in other nations. For example Sweden is seeing an issue where their immigrants feel like there's no reason to integrate, and Swedish employment figures for how many immigrants they actually hire is kind of... interesting.

Anyone driving a wedge between groups can profit from the division, because if you turn voters against immigrants or outgroups and claim they are the main beneficiaries of social safety nets then big business and certain politicians can gain power by cutting those nets, even if the majority of those served are actually from the majority population.