The vicious cycle started with an amnesty followed by non-enforcement of existing laws--Title8USC1324-5. Overbreeding Latinos caused wage declines and lack of jobs in their own countries, then illegally came to the US to be hired by law breaking Americans wishing to keep wages low to get more profits and underbid or sell more cheaply than their competition. Americans were driven out of jobs from outright physical force or wages too low to live on, while illegals were allowed to live in far over the legal occupancy of buildings. The border has been trashed out, National Forests burned by them, National Parks and Monuments damaged, ranches and other property robbed and damaged. The ripple effect spread through a variety of jobs, suppressing wages. People could afford less and sought out cheaper products, exacerbating the problem and bringing in the overpopulated low buck of China, too.
Millions of Americans encouraged, aided, abetted, and employed illegals in felony violation of the law, for which they owe $5K fines for EACH illegal or more. The illegals owe $5K fines plus fines for trashing out and ruining the border. The total amount owed by law is staggering, and well over the amount needed to deport all of the illegals and pay off our entire National Debt.
Out of work Americans will take agricultural jobs, they will take construction jobs, they will take factory, housekeeping, and janitorial jobs. They will want fair wages and will pay taxes. Prices will rise 10 to 20%, perhaps, but they are on their way anyway from overpopulation.
A 10% reduction in US population will help, from deporting all the illegals. Having no National Debt will help our economy. However, we need no more immigration at all and laws that help reduce our population to sustainable long term while reducing our emissions 90%.