All true, but there is a legitimate concern for some GMO agriculture, specifically plants Round Up cannot kill. Capital Press has an excellent article on GMO bentgrass that has escaped into the environment. 

Depending on which sect of the Church of the Organic you're dealing with...for most of the puritans here in Oregon they are prohibiting the sale of bananas and oranges. Only agriculture that is "locally" grown is allowed to be sold on public land at "farmers" markets. It's all about crony capitalism when it comes to liberal economic bigotry and the anti-GMO crowd.