Ya, fully banning silk might be (much) more feasible than banning chicken meat/​eggs, although Lewis said he thinks meat chicken welfare reforms reduce 5-75% of their suffering (~40% in the US, ~25% in the UK), so full bans are only a few times better in expectation, in suffering terms. (I’m don’t have a strong view on this.)
Ya, fully banning silk might be (much) more feasible than banning chicken meat/​eggs, although Lewis said he thinks meat chicken welfare reforms reduce 5-75% of their suffering (~40% in the US, ~25% in the UK), so full bans are only a few times better in expectation, in suffering terms. (I’m don’t have a strong view on this.)
Maybe work on fur bans is a useful comparison?