This seems to beyond the target of skilled H1B labor to unskilled, seasonal H2B workers, ie legal day laborers and seasonal migrant workers (specifically noting legal immigrants here, not discussing illegal).
This will leave a possible unskilled, low pay labor gap.
I wonder if the consideration has been given to use prisoners to fill this. They can't say no and can be paid pennies on the dollar compared to even migrant workers, and if we need more of them, we can just make more things crimes to get more prisoners.