Any other country would, and do support a live trade to avoid tariffs and help the industry, and country, rather than suggesting sheep farmers all pile into beef. Sending lambs across the water would be quicker and better for welfare from the East as we have no real abattoirs left for lamb near, and a future cover cropping / mixed farming via ELMS etc could support an increase in sheep in the East.
and add the ridiculousness of internal sea crossings in Britain and Ireland being longer than the channel crossing...