A demand for the average American to eat more meat would have to explain, as a baseline, why our already positive trend in meat consumption isn't yielding positive outcomes. There are potential explanations (you could argue increased processing offsets the purported benefits, for example), but those are left unstated by the website.
[1]: https://www.agweb.com/opinion/drivers-u-s-capita-meat-consum...
[2]: https://ers.usda.gov/data-products/chart-gallery/chart-detai...
I really enjoyed "keeping up" with her when we were dating, because I was really tired of eating the same things all the time. There's really a lot of delicious plant proteins if you take the time to look.
(That being said, our kids like meat. We just don't eat it all the time.)