[setecgastronomy]

> In the USA, welfare spending dwarfs farm subsidies by a factor of >50.

That depends on what you count as a "subsidy". Are all the roads, dams, diverting of rivers, etc counted as "subsidies"?

> Its effect has been shown quite convincingly in Massachusetts and China.

Modern subsidized agriculture in both countries has quite convincingly showed it.

Not sure why you are now moving the goalpost to welfare.