It is more than that
When you over produce crops you tend to plant them in narrow rows which overloads the soil hence the need to use fertilizer. Note, it's been this way since the 1940s in USA and Europe.
Or in short words we are not being effective in feeding the world and are wasting efforts on capitalistic goofs rather then using more effective solutions.
Native American Indians used a technique borrowed from South American Indians where they refused to do monoculture, instead they grew 3 to 4 crops in the same field.
If we want the future world to starve we will stay on Monoculture.
If we want to save the planet then we need to move away from Monoculture.