Is NZ first's Immigration policy intrinsically Selfish?

Why NZ first's immigration policy is selfish. Their position on immigration although appealing in a knee jerk reaction way, aka less people taking jobs etc does not fix the major problem that people are literally starving in third world countries and need to come to NZ. immigration is a problem because NZ actively lets in people to the country we can exploit for cheap labour. I know you and I would not want to be exploited for cheap labour, we also wouldn't want to be starving to death somewhere. The problem is bribery in the immigration system. We should not prevent people coming into the country because we think they are going to steal some resources or jobs from us. We should prevent them coming into the country so we can unceremoniously exploit them, effectively keeping them in a western form of poverty as opposed to a third world form, immigrants are faced with slavery in the west or death at home. Immigration is a forced choice for many, denying them immigration is a death sentence, we have to come together, let in the worst off into the country, instead of giving the rich a free ride in NZ by buying up million dollar assets and them receiving instant citizenship. NZ first does not plan to tackle any of these problems, it is just delaying any form of solution, so although it looks appealing, it is not, if you value human life a just immigration policy. Just my opinion.