> In the US, Despite our country having vast and endless supplies of food from megafarms and their accompanying subsidies, there is very little safety net in America to ensure anyone is fed at all once they are unemployed.

On the contrary, food stamps (SNAP) is pretty much the only federal welfare program that covers everyone based only on need (i.e. low enough assets and income).

There is a 3-month limit for many people (e.g. able-bodied males who don't have kids) but states have the power to extend it in times/locations of high unemployment.