Respectfully, it has been a failure, and I cannot square your assumptions about the situation with the reality of it. Demand for and production of meat has continually increased, as PaulHoule noted.

Per Our Wold in Data, per capita meat consumption has more than doubled globally over the last 60 years. For per capita egg consumption, the only continent to decrease over the last 60 years is Oceania, with Asia and South America more than 5xing. Global milk supply per person has increased the least over this period, only about 15%.

The veganism movement that you refer to was founded in 1944. Over the period of its existence it has lost on all fronts. Yes, people voted with their feet, and it works! It just turns out that they don't want veganism.

And thank God for that. As an agriculturalist, I see veganism as a total aberration, demonstrating a complete disconnect between humans and the natural world that could only exist at scale in an industrialized food system.

That said, I fully support you choosing to eat or not eat whatever you want. More robiola for me.

https://ourworldindata.org/grapher/per-capita-meat-consumpti...

https://ourworldindata.org/grapher/per-capita-egg-consumptio...

https://ourworldindata.org/grapher/per-capita-milk-consumpti...

See https://www.feedstuffs.com/livestock-and-poultry-market-news...

Probably the most important trend in that chart is the share of chicken has greatly increased.

As for future trends: https://www.oecd.org/en/publications/2025/07/oecd-fao-agricu...

I haven't met anyone who thought of it as a "movement"; everyone I have known who is or was vegan did it for their own ethical and moral reasons (i.e. they didn't expect it to have a wider impact and didn't "need" it to), and one predominantly for health reasons.

You probably live in a bubble where people going vegan is a thing. In my circle, is about 0,5% of people. (I'm vegetarian btw)