The argument that would NOT be valid in favor of producing genetically engineered soybean seeds is:
Soybean plant biodiversity can decrease if only certain types of seeds are planted by farmers.
This statement highlights a potential negative consequence of genetically engineered soybean seeds, pointing out a concern regarding biodiversity rather than supporting the production of such seeds. The other statements focus on the benefits of genetically engineered soybeans, such as herbicide resistance, increased crop yield, and pest resistance.