What do you think about GMOs?
Many of the arguments against GMOs are not arguments against GMOs themselves but the economic policies within which they reside, e.g. from the Wikipedia article Genetically modified food controversies, Market share gives firms the ability to set or influence price, dictate terms, and act as a barrier to entry. It also gives firms bargaining power over governments in policy making.. This is an argument specific to free-market economies with specific goverment policies on intellectual property, monopolies, business to business conduct. In a hypothetical situation where the bargaining power of seed suppliers was reduced, this problem wouldn't exist.