In your story nobody is forced to anything. The farmer that doesn't like the monsanto deal made their choice, effectively rendering their farm business less competitive (unable to lower prices like the other farmer). That was predictable, it's also why the other farmer took the deal. Yeah, forced by market to not ignore progress to be better at what you do, that may be, but can't see that as negative.
They are forced in the sense that they don't have a viable choice other than taking a bad deal.
Note that the issue isn't ignoring progress. Neither farmer has an issue with using more sophisticated seeds. The issue is with the deal that goes along with the seeds.
