Repeat after me: There is no job that an American won't do for a given wage if the price point is set correctly.
If you are not attracting workers at wage A then increase wage A by amount B until you attract employees. It is called supply and demand. Your "friends" are blowing smoke up your tucas.
Would you pick lettuce for $100/hour? Probably you would, that is a ridiculous example but it makes my point. There is a price point between minimum wage and 100/hr that will attract workers. it is their duty to find it , not import foreign nationals.
You are so brilliant! I sense a business opportunity! Start a labor brokerage for US farmers. If pay is the only consideration and they are presumably hostage to their access to labor, you can simply keep upping the advertised pay package until you find the work force. Simple!
If that fails, you could set an example and advertise your services for whatever you think you are worth. Plan C could be to begin farming produce, paying American citizens whatever it takes to get them to work....right beside you, of course.
As for me, I am a small 72-year-old woman. I have always worked for myself. There was not a single time in my life that I can recall that I would have picked field crops, no matter how much was offered. And there were times I was pretty desperate for income. I just am not physically capable of such work and I recognize my limitations.
I do know people who picked apples seasonally up into their 50s. Everyone of them admitted it wasn’t worth it for the pay, but they had no other options. Thankfully, I was always able to find something else.