One thing missing about the discussion of maintaining legal immigration is the impact illegal immigration has on the US job market. Persons within the US without a valid work visa or other form of approval are, indeed, negatively impacting the ability of US citizens to obtain gainful employment and achieve higher wages in any job. Persons circumventing the process are certainly going to perform any work they can (typically at a much-reduced rate) without question (under the threat of blackmail). It is, in essence, a form of human trafficking and slavery.
Every poster here should be in support of eliminating illegal immigration, regardless of political affiliation.
I am not saying this is a consideration to any of the oligarchs and their spokespeople occupying political seats across the country, as it is not.