It's because they're in VIDOR, TX. No minority with any knowledge of that place or with the good sense God gave them will go there. I sure wouldn't, for ANY PRICE.
SE Industries should've thought of this before they located in Vidor.
There are plenty of people who would take them up on it if they properly advertised the jobs. The incident of Alabama job service workers going to N.O. to do cleanup and then being turned away when "the Mexicans arrived" shows that americans will go the distance to do unpleasant work if the pay is reasonable.