Not just nutrition, over the last ~30 years there's also been a philosophical shift globally where many people went from thinking about impact on humans as the only thing to assess, to considering the impact on the wider ecosystems.
Today not only we discuss nutritional content we also discuss the externalities to produce those calories.
You're talking about the common misconception that this planets ecology is somehow broken, that humans are supernatural (literally above nature) and that only other humans can fix it.
I'm also assuming that you're goodwill for other species ends at insects and bacteria