I would imagine they read this food report in China in 2019 and if they verify the findings, at say this point in time, and the great leader likes it... One can only imagine what would happen as this technology evolves and China takes it up like they did with infrastructure, solar, EVs and batteries with a plan and incentives. America would have little choice really no matter how hard the red states howled, their con artist republican politicians would be working for the corporate side with the cash, con the base and serve the rich, fuck the voters! They will keep them focused on immigrants and culture wars while their value chain disappears, and the farm is on the auction block as their real threat emerges on the stage.
As I said I dunno if it will come to pass, but we are 4 years in already and anybody with a vital economic interest should be able to verify if the cost curves are on track and if they are, they might want to do some thinking and looking. 2030 is just 6 years and 2 presidential election cycles away and by 2035 there might be a lot fewer rural red districts in congress as whole regions depopulate. We have seen such things with countless industries and America has a rust belt for a reason, the ruins of former industry giants litter the landscape of the industrialized world.