Not really interested in arguing with you (you seem to be very set in your ways), so just some link spam for you ;)
> 'single biggest way' to become unhealthy, weak, and scrawny
https://old.reddit.com/r/veganfitness/
It is the position of the American Dietetic Association that appropriately planned vegetarian diets, including total vegetarian or vegan diets, are healthful, nutritionally adequate, and may provide health benefits in the prevention and treatment of certain diseases. Well-planned vegetarian diets are appropriate for individuals during all stages of the life cycle, including pregnancy, lactation, infancy, childhood, and adolescence, and for athletes.
- American Dietetic Association
A vegetarian or vegan diet can be suitable for everyone, regardless of their age.
- NHS UK
A plant-based diet is based on foods derived from plants, […] with few or no animal products. […]
Well-planned plant-based diets can support healthy living at every age and life-stage.
- British Dietetic Association
> they are methodologically very dishonest (tricks like falsely equating protein quality)
For adults, protein from two or more plant groups daily is like to be adequate.
- WHO
> anti-meat activism tends to be either quasi- or literally religious
https://www.youtube.com/watch?v=7vWbV9FPo_Q - Melanie Joy, The psychology of eating meat
https://www.youtube.com/watch?v=E7JE8j5Ncmw - James Wildman, Think
> every problem is actually caused by that thing I don't like
Plethora of studies has confirmed that (animal) agriculture is one of the biggest destroyers of our environment. It's mostly animal products consumers who reject latest science and choose to be ignorant of those problems.