I'll agree with the thought of "The folks who say they do not care about animals join the company of everyone who has historically opposed the widening of that circle", I do benefit from the status quo.

That being said, it is a huge proposition to proclaim you're on the right side of history, and that others who aren't should either reconsider or live to regret it. Especially when the change you champion will only happen when those that make money from meat no longer do. I'll sooner bet on the grass turning purple.