Why do you think it is on borrowed time?
It would be more economical and environmentally sound to grow vegetable protein for human consumption.
btw, I also know hunters who donate venison to food banks as part of wildlife management programs.
You answered your own question in the first two sentences.
We used to get nine nuisance permits per year for our semi-wooded quarter section and all the resultant venison was donated. And yes many hunters donate. Doesn’t change the fact that hunting is not a viable or efficient long term strategy for mass consumption of animal protein.
It’s true that fowl and fish convert feed into body weight much more efficiently than hogs and especially beef cattle. Conversely, hogs and cattle produce much more “valuable waste” than fish or chicken. That closes the gap, but not entirely.
But I want to hone in on your comments about plant protein. Look at market expectations for vegan plant based foods over the next five years. It’s an exploding market. I don’t see that changing unless the imminent inflation makes it unaffordable enough to curtail its growth.
But, as you inadvertently pointed out, there’s still the emissions problem of supplying millions of people with year-around vegetables and plant proteins that cannot reliably be produced at the latitudes at which they reside.
Humanity had it mostly right for much of its existence. Plant food close to water, harvest wild animals as necessary, and barter anything extra for others things they needed.
But then mechanization happened, and science evolved plants and animals and farming practices that could be used to support a lot more people. So then the population explodes and people migrate to urban areas in search of jobs because mechanization has eliminated most of them in rural areas.
Entire urban and suburban generations come and go never having to nurture a crop or an animal for food and most children who are asked where their food comes from don’t have any better answer than, “From the grocery!”
Urban rooftop gardens and suburban backyard greenhouses have become a thing, and that’s great. I think many people have an innate need to grow and harvest.