ahem, wrong it gets converted to fatty acids see https://www.lakeforest.edu/news/a-difficult-reality-to-diges...

Its why they have fast weight gains

In fact reducing corn yields and switching to a different crop will save farmers money as framers have to over supply fertilizer as they are planting corn too close together to get yields without using fertilizer i.e. corn take out more from soil than it gives back

Yeah, but you get bland greasy meat that's barely worth using for pet food.

100% on the cows, wrong on hard to grow. Growing in mass quantities is hard on the local environment (global if you count the affects from usage). Corn fed beef is bad.