Of course!
There are vast swath of industries that Americans won't apply for, by and large.
We've created a preference for aspiring careerists and have devalued service and labor jobs immensely.
Look how shitty most retail workers perform their jobs?
This isn't true, and I'm worried that such a basic rightwing canard is passed around so easily. The Census Bureau lists 472 potential civilian occupations; only 6 of these are majority immigrant, accounting for less than 1% of the US workforce. To be precise, these majority immigrant roles are:
GRADERS AND SORTERS, AGRICULTURAL PRODUCTS
MISCELLANEOUS PERSONAL APPEARANCE WORKERS
PLASTERERS AND STUCCO MASONS
SEWING MACHINE OPERATORS
MISCELLANEOUS AGRICULTURAL WORKERS, INCLUDING ANIMAL BREEDERS
TAILORS, DRESSMAKERS, AND SEWERS
And even the most immigrant dominated of those (graders and sorters) are only 63% comprised of immigrants.
Americans will do most jobs if necessary, but labour conditions as a farm worker are awful and physically destructive. It's not acceptable for anyone to do them, and it is unsurprising that, at the pay offered and with the health and safety conditions available, Americans would at least rather take their chances on welfare; whereas immigrants obviously don't even have these as a choice and bluntly have to do this or starve. Abuse of migrant labour in these sectors is an enormous problem.