If the reality is as you describe it then John Deere is effectively a government entity now, there is no way the feds/state would actually allow them to collapse and all those fields to die off. If you work at or buy John Deere products you're just living on the taxpayer dime, call it what it is.

I'm not sure why half our economy suddenly seems to be structured around these "too essential to fail" business models, but it's brand new and really really stupid. I guess this is the end result of a generation of people coming up while a gaggle of billionaires get bailed out while absolutely nobody went to prison.