I found this graphic. Even if we feed the waste the industrial waste to livestock and deduct that from the demand for animals (76 % – 13.2 % = 62.8 %) which I don't think we can do 1:1, over 60 % of the world wide soy bean production is only done for animal feed. From the graphic I don't know if the mentioned waste is even fed to the animals.
But in the worst case scenario eating plant based would save 60 % of soy beans from ever being made, while the new demand from the plant based diets must be lower. Because lots of non-plant based people eat soy products already, especially in Asia and it still only makes up 20 % of the soy bean production right now.

Unfortunate trend.
Switzerland now doesn't grant the full special status if you are from a "safe" region in ukraine, even though attacks are common there.
Source: SRF (in German)