To put this into more laymen's terms, meat cultivation dramatically increases the total amount of plants that we need to grow.
As mentioned in my other comment:
> 70-75% of soybeans grown globally are for livestock, only 6% are used for human food products (meat eaters often try to claim that soy production is terrible for the environment; surprise, surprise, meat consumption is the main driver)
So, it's a bit counterintuitive, but globally switching to a plant-based diet would actually dramatically reduce the total amount of plants that we are raising, and therefore would dramatically reduce overall suffering of plants (if they suffer)