What about soy and deforestation?
Around three-quarters of the world's soya is grown to feed farmed animals. Eating plants directly reduces soya demand rather than adding to it.
Soya is one of the main crops behind the clearing of the Amazon and the Cerrado, and vegans lean heavily on it for tofu, soy milk, tempeh and meat substitutes. A diet built around a crop tied to the destruction of some of the world's most important forests and grasslands is hard to call environmentally clean, and swapping meat for soy products can look like trading one harm for another rather than escaping it.
Most global soya production goes to animal feed, principally for poultry and pigs, with a further portion crushed for oil. The share consumed directly by humans as tofu, tempeh, soy milk and edamame is small.
This means the deforestation associated with soya in South America is driven overwhelmingly by demand for meat, not by demand for tofu. A shift towards eating plants directly shortens the chain: feeding crops to animals and then eating the animals requires substantially more crop production than eating the crops, because most of the energy is lost in conversion.
Presenting only the evidence that supports a conclusion while leaving out evidence that tells against it.
How it applies here: Isolates one crop associated with plant-based foods while omitting the fact that most of its production is grown to feed livestock.
Inferring that one thing caused another from the fact that they occurred together or one after the other. Correlation and sequence are not causation.
How it applies here: Attributes soya-driven deforestation to tofu consumption, when the demand actually driving expansion of the crop is demand for animal feed.