Without subsidies none of those would survive, especially the French ones, who are notorious for their 'traditional' (i.e., inefficient) farming practices.
I'm not sure US agro-business would survive at scale without the massive federal subsidies it receives. The little guys in the US don't get the benefit of the government money on anywhere near the scale of the big firms. Large agricultural corporations are among those lined up to grow from the Cantillion effect of being very close to the government money printer---and everyone who's further from that spigot gets squeezed as the purchasing power of the US dollar is destroyed.[1]
