Absolutely untrue that meat is required.
https://www.bmj.com/content/370/bmj.m2412
This study says that replacing animal protein with plant protein could be associated with longevity (that fact that plant protein instead of animal protein could lead to a longer life shows animal protein isn't required).
https://jamanetwork.com/journals/jamainternalmedicine/article-abstract/2768358
Higher amounts of plant protein was associated with lower risk of cardiovascular disease and mortality (same as above, shows animal protein isn't required).
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5048552/
Same as the others, animal protein positively associated with mortality, whereas plant protein is negatively associated.
These are all peer-reviewed, scientific journals, not a news article like the one you posted.
Now, since you are sceptical of the effect of animal farming on the planet, here we go.
https://www.sciencedirect.com/science/article/abs/pii/S0377840111001933?via=ihub
Contribution of live stock farming is up to 18% of global emissions.
https://academic.oup.com/ajcn/article/78/3/660S/4690010?login=true
Meat-based agriculture uses far more land, water and energy than plant-based. And most plants grown are fed to livestock, too, meaning that the surplus is two-fold for animals.
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(07)61256-2/fulltext
Livestock farming amounts to about a fifth of the world's emissions according to this study.
https://academic.oup.com/ajcn/article/89/5/1699S/4596964?login=true
Meat-based agriculture requires 2.5 times more energy, 13 times more fertiliser and 1.4 times more pesticide than plant-based agriculture.
You shouldn't speak so confidently about things which are against the scientific consensus. Also, always check studies for conflicts of interest, as the meat industry funds many studies.