However, if illegal immigrants were gone or significantly reduced in number, that would be a lot of construction, manual labor, gardening, dishwashing, etc. jobs that would suddenly need to be done and be filled by Americans making at least the minimum wage in their locality. Which would be better than these Americans having no income or living off welfare.
This is a myth, or even a hoax if you want. You can say whatever you want about global warming deniers, yet this is the way I see it an even much greater hoax still. They do the work that noone else is willing to do. Try to get your poor white unemployed neighbour to start cleaning toilets, and he probably wouldn't even talk to you anymore. And immigrants don't steal other people's work. Research show something like for every 10 new immigrant workers, something like 12 more jobs are created. By the way, did you know that most billionaires don't pay taxes at all? Neither do many/most multi national companies. Is that fair?
Completely untrue.
Do you think before the U.S. had millions of illegals, no one mopped? No one cleaned dishes? No one picked food, or did construction?
It isn't only cleaning toilets, illegals are huge in the construction industry for instance, you see them as landscapers/gardeners everywhere.
These are jobs that if there weren't illegals around, someone would have to do it.
The fact that you think there literally are not people you could pay to sweep the floors or clean toilets is silly, every country in the world has people to do these jobs. If no one wants to do it, well then the market would indicate that you should pay a higher price for that job. Businessowners would love to import quasi-slaves who they could pay almost nothing. But if that's not an option, then they'd have to actually pay a citizen the minimum wage.
I have no sympathy for the super-rich who pay no taxes, I do not worship at the altar of tax cuts.