Yeah, there's nothing inherently wrong with monocropping. People just equate monocropping with industrial agriculture, usually "permaculture" grifters. There are alot of grifters in the permaculture sphere. Unfortunately, there's alot to parse through in agricultural sciences.

I guess then without industrial agriculture how can you feed a lot of people? Is the issue the land size used that makes it bad for the environment or pesticides and etc?