You are right. I was thinking of the decline in dairy consumption in the US, which has been decreasing. Per-capita cow's milk consumption has been decreasing for 70 years here:

https://ers.usda.gov/webdocs/publications/102447/err-300_sum...

Meat consumption in the US in fact growing at an alarming rate: https://sentientmedia.org/meat-consumption-in-the-us