I think the end of factory farming should be a bigger target for vegans, animal rights activists etc. It may be a more achievable target than we realize. I'd like to do more to support such a campaign.
A big campaign to totally end factory farming at this early stage, with so few vegans alive today, might not lead to any immediate result but it would move the debate on to a point when it becomes more mainstream later on.
From the US perspective, does anyone know if legislation can be passed at state level to ban it? If yes, it might make more sense to start the campaign in liberal states like California and New York rather than aiming for a federal campaign.
Such a campaign probably needs something like justice for the workers (payoffs, retraining, help to get new jobs) to have a better chance to succeed.
One of my dreams is to still be alive if and when there are mass animal rights protests on the scale of Vietnam or the Iraq stop the war (UK) or something. Perhaps blockading the CAFOs.