Single issue campaigns that say the solution is 'more humane treatment'- bad
Single issue campaigns part of vegan educastion/focus point to draw in public's attention whilst maintaining no animal use is humane - good.
But with this you totally remove yourself from any chances of achieving industry welfare reform -- which counts, and is the only chance of a better life, for billions of animals currently at the hands of the multinationals. Can we really disregard the needs of, and turn our backs on these countless animals?
It doesn't need to be so black and white. We can engage and exploit that sole motive of a private company -- profit -- with single issue campaigns targetted at industry welfare reform. By not doing this, we completely isolate and alienate ourselves from an institution which can be used (though very, very rarely) as a cause for good.
I suppose my bottomline is: no good tactic, for anything, is as black and white as you put it.
On the topic that all activism of the past 30 years should have been solely, as Francione puts it, "creative, non-violent vegan education"... well, none of us can be sure where that would have got us. Would people such as Ingrid Newkirk (a self confessed once meataholic) have been attracted to the vegan message? Or has she only been pulled into the greater movement of animals rights -- like so many other activists -- by well managed, single issue campaigns? I fear that if all activism was positioned only around vegan education many activists wouldn't gave given the issue the time of day. I know I wouldn't; as a stupid, young, ignorant, naive 14 year old, being a hippy vegan was something I certainly wanted no part of. Ending the use of the sow stall, though? That was another story.