So you'd prefer that farmers get screwed by the onerous IP clauses surrounding them?
GP claimed "GMOs ... will kill the best farming land we have"
The parent you replied to refuted that point. Onerous IP clauses surrounding crop seeds is an IP issue, not one of agriculture and topsoil quality.
And quite frankly, if onerous IP was the cost we HAD to pay, compared to the depletion of a resourse that is "non-renewable in human timescales," [1][2] yes, that's easily worth it.
1: Food & Agriculture Organization of the UN, http://www.fao.org/resources/infographics/infographics-detai... "Soil is a finite resource, meaning its loss and degradation is not recoverable within a human lifespan."
2: US Forest Service, way back in 2003 https://web.archive.org/web/20170531160340/https://www.fs.fe... Section 11.2 "On human time scales, fertile topsoil is not a renewable resource."
Most of the clauses you think of as onerous are non issues to real farmers. Hybrid seeds don't breed true, so no farmer is saving their seed in the first place.