Unfortunately, even most conservatives who want immigration laws enforced aren't willing to discuss this. They frame the debate in terms of enforcing existing immigration laws, or perhaps in terms of the economic costs of immigrants who receive social services. However, there is a wider issue here that applies even to many immigrants who come here legally and who are not necessarily economic parasites. That wider issue is whether mass immigration, particularly from the Third World will fundamentally transform the demographics and culture of the US in a desirable way.
The question of whether immigrants can and will assimilate, as opposed to remaking the US or Europe in their own image, is rarely brought up even by immigration "hawks" in fear of being called racist xenophobes by liberals or the politically correct pseudo-conservatives. There are very good reasons for having immigration quotas based both on the number of people and their nations of origin that go beyond economic and legal issues alone. Because of this, the elites have decided that you have no say in our country's ethnic or cultural makeup.
The make believe world of those who pretend that people are interchangeable threatens the cultural achievements of every nation, and must be addressed as the fallacy that it is.