The French, Dutch, German, Belgian, and Irish farmers are largely unarmed. Our farmers and ranchers are not, The Feds cannot enforce similar regulations in this country without state help. California will be happy to comply with Federal “green” regulations as they are rolled out. That will be a problem for American fruit, nut, and vegetable production, much of which is concentrated in that state. Florida, most of the South, the northern Rockies states, and the Plains states will not.
Farmers will be fine. People who depend on them? Not so much, particularly if the farmers decide to only plant what they need. It would only take 10% of them not planting a full crop to cause severe chaos in the supply chain. Pissing off the people who grow your food is never a good idea.