>Yes in the long run that matters, but its all the more reason that we should reduce animal agriculture right away as the payback is much faster than limiting Co2.

The long run is the thing that really matters. A faster payback only serves to cover the impact of those that want to keep pumping up oil and gas in the meantime(also to make synthetic fertiliser) for a few decades. It shifts focus from that on cow farts. As if the rotting plant matter and wild animal life that could replace it didn't emit any methane.