Alternatives need to be cheap and easy.

I agree. We've created quite the fast paced and frantic society. A cheap an easy alternative could shift our consumption if we scale it properly. I'd argue it should be a primary focus of anyone passionately against factory farming. We can worry about moral messages as an aside: busy, poor, and hungry families will respond better to successfully launched vegetarian and vegan fast food options at existing establishments. We're not culturally there yet.