Berfie, I live in the Pacific NW and grew up in apple country (and berry picking too). My own father's family were farmers, apple, wheat, etc...
He grew up working as farm hand for family and other farmers all of his life till he joined the Navy at 16 for the Korean War. My uncle (also had been in the Navy) was a bachelor, and had become a migrant worker throughout the NW the rest of his adult life.
I too grew up rural and my siblings and I spent out summers working in the berry fields locally for school clothes and vacation spending money. We all know how hard this kind of work can be, and are aware of the physical sacrifice it takes to be out in the sun most of the day.
I think it is commendable your father chose hard work over an easy corrupted life. Most Americans are aware of how hard field work is, and yes, some would be totally unwilling to do it, but not all.
I can understand being at odds with a parent about either political or social beliefs, but do stand up for what is right for this country, future American generations are depending on it.
We too feel this attempted merger of the three countries is wrong and want it stopped. We want to keep America sovereign. I feel personally that NAFTA and CAFTA have been disastrous to Americans and also to many Mexicans/Central Americans.
Americans have lost thousands of jobs, and those south of us are not benefitting, only their elite are.