I'm all for listening to contrarian arguments, but this seems a little inconsistent:

"Organic farmers won’t use Roundup and other herbicides, so they plow the weeds under, which kills a lot of small animals"

In other words: herbicides are good, farmers should use them.

"Standard industrial cotton has Bacillus thuringiensis (“bt”) genes mixed in and these kill pests, cutting the need for sprayed pesticides in half."

In other words: pesticides are bad, farmers should not use them.

"Organic farmers won’t use standard fertilizer, but only manure from cows, which means we’ll need a lot more cows running around"

By the same argument, recycling is bad because we'll need a lot more garbage to recycle.