What is the US Farm Bill and how does it subsidize animal ag? I know I could look it up but just wondered if you have a quick summary. I often hear how the fossil fuel industries are subsidized by governments, but I think that's a tricky use of words. Usually the vast majority are tax breaks rather than direct funding, and even when it is direct funding it usually emerges from various policy programs aimed at assisting industry more generally. Many industries, including the renewables industry, also benefit from these kinds of assistance.
Also, when it comes to animal ag sector, is it misleading to say that it emits more GHGs than transport? That isn't how emissions are normally assigned - some of the emissions for animal ag are already included in the transport and other sectors (eg energy), so adding those back into the ag sector is sort of double handling. I am pretty sure that animal ag is probably only about 5-8% of US emissions while transport is about 28%. As well, it seems that land use and land use change in the US is a net sink, while methane emissions from animal ag is not a net additive to the global atmospheric store.
I'm not for a minute suggesting that the US should not reduce meat consumption or do more to mitigate GHG emissions, just suggesting that some of these claims seem a bit overblown.