We are talking about several million employers. Not a few.
No enforcement for 30 years.
The voters want these folks working here. And they are voting with their pocketbooks and the candidates they vote to represent them. Illegal immigration is not a problem with the vast majority of voters.
Several million ? Hardly.
Several million people do not use illegal nannies and own construction firms. It is the classic economic example of an externality where a business cuts its costs by dumping them on others. A manufacturer who dumps his toxic waste into the river cuts his costs by having people downstream die of cancer. A company that employs illegals cuts its payroll costs by making the taxpayers pay for all the social services that masses of poor people will consume.
It is the voters with their tax dollars who must pay for the social services consumed by huge numbers of poor people. And there are more taxpayers than employers of nannys.
No problem with the majority of voters ? Try peddling that in a border state.
That's not what the polls show.
Since the number of illegals is estimated at 10 million, and the number of voters is 120 million and 1 illegal can at most displace 1 citizen worker, then your conclusion would be correct.