Livestock isn’t a top driver when it comes to greenhouse gas emissions. Livestock animals only contribute a total of about 3.9% towards emissions. Agriculture as an entire industry only contributes 9%. We should be focusing on rallying for clean, sustainable power instead to help lower contributions by industry (22%), transport (29%), and electricity (28%).
It is completely unreasonable to throw several stats at me without even a hint of a source. Even the most conservative reliable estimates place GHG emissions for animal agriculture at 14.5%, the United Nations Food and Agricultural Organisation, who produce the measurements which most other agencies use, put it at 16% and it’s very likely to have increased since then. The scientific sources most critical of that FAO report and it’s methodology actually contest that the 16% statistic underestimated the impact of livestock because it fails to fully account for fuel use, fertiliser production and agriculturally induced land degradation.
I’m not sure where you got that stat from, but I can’t even find any halfway reliable source estimating it as low as that, and that’s me actively looking for the lowest estimate I can find. Even those sources attempting to debunk the environmental claims of veganism, like Sceptical Science put it no lower than 14%, and the lowest figure I could find which wasn’t from a site with a name like welovebacon.org was from the IPCC at 10-12%, and that was rejected by most on the grounds that it failed to properly account for all sources of animal agriculture emissions. Please check your facts, or at leastprovide a source so that I can check them for you.