There are very good reasons that there isn't a documentary pushing meat as ethically superior.
We have, however, been inundated with advertising to tell us how wonderful meat iand dairy product is - pushed by the industry. Meat, in particular, being seen as very masculine. Fair enough it's their job to do that.
Surely its fair enough for a vegan to put an alternative view.
You can take anything you want from Gamechangers - the thing I recall is that you can eat healthily, you can compete at the highest level in a variety of sports - all by avoiding animal products. In my view it bust a few myths.
The ethics of it is down to the individual - and, for most, it is 'set'. It is 'set' arguably by the messages of many many years regarding meat and milk.
Phoenix is talking about the ethics of artificially inseminating a cow, taking its baby calf away and using the milk meant for the cow for human consumption,. All because we have the power and therefore we can.
Personally I think that is an ethical debate worth having.
My personal challenge, is to understand what can be 'right' (if that is the right word) about what we are doing in that scenario.