Oh, I'd be all for cutting off benefits also. But any enforcement of whom receives benefits would also be run, as you say, by the same government that brings us ObamaCare.
Moreover, unless you change certain laws, illegals cannot be denied the benefits necessary medical treatment nor public education. And since I doubt you'd ever get those laws changed, then the best bet would still be to work from the employment angle.
abject pathetic nature of our own domestic unskilled and semi skilled labor force
The free market is a dynamic thing. It will adjust to the absence of illegal workers. It would be interesting to know to what extent the pathetic nature of our own domestic unskilled labor force is due to the effects of essentially unfettered illegal immigration. I'd bet there is some cause and effect going on there.
I don’t disagree with anything you said, except maybe a little matter of degree here or there. Bottom line? Especially regarding our workforce, which degraded due to rich government hand outs, powerful unions, a gimme mentality and ADHD etc.
This situation has evolved over 50-60 years - with a porous border. What we have now is the result of supply and demand playing out, including on the consumer end. To try and devolve it quickly would punish each and every one of us. Something to think about.