Why do you people always forget the important part?
Some Americans don't want to work in the heat FOR THE WAGES OFFERED.
Which means the employer has to offer a higher wage, not turn around and break the law by hiring criminals from Mexico.
If we want more Americans to have the urge to work in the heat of Texas, all we need to do is stop subsidizing indolence. Cancel all unconstitutional entitlement scams, including FDR's and Johnson's welfare scams. There'll be lots of people out lookin' for work in the fields then.