Farming subsidies etc are the reality in high-income countries like UE or USA. But UE doesn't really *need* GMO because it can produce huge amounts of cheap food already.
GMO is needed in the first place by low-income countries in Africa and Asia, which still experience famines or vitamin deficits in 21st century! And here you have Greenpeace "heroically" destroying Golden Rice or Bt brinjal crops for the sake of... "purity" and fanatics like Vandana Shiva.
Obviously, a mutagen is like a bulldozer - it can modify a dozen of genes. Can make the plant more sweet, or more poisonous. But we don't care as long as the result is sweeter or bigger or whatever we like.
Then we discovered gamma rays, which do the gene splicing even better. New varieties of tomatoes, apples, potatoes, wheat etc etc. All produced through 20th century using mutation breeding.
Actually, Non-GMO Project maintains a whole list of plants that are "high risk" of being modified using CRiSPR (which they call GMO). The funniest part however that for many plants they *cannot* in any way distinguish them from non-CRiSPR (non-GMO as they call it) plants, yet they speak of "risk" and "contamination".
Check this book -
https://libgen.lc/ads.php?md5=3816FB871D4DF90AC879E582BAEE07AF
chapter 5 "Green Genes" as it goes into great detail about genetic engineering techniques, including origins of opposition, and including peanut allergies (screenshot). It was written by a recognized environmentalist Stewart Brand who condemned WWF, FoE and Greenpeace on their anti-scientific position, as many other environmentalists did.
So the argument about "GMO market not being successful" is a bit like Greenpeace blocking nuclear plant building and operation by *any* means and then saying "look, it's expensive and delayed" π
Having said that, many GMO plants like Golden Rice and Bt brinjal *are* available without patents and were developed by public research institutions or NGOs. We just need more public research into this... but public universities are harassed even more!
A case study - I can guarantee, that if we in Eastern Europe did not already transform farming during communism (mostly in 60's after fall of Lysenkoism), we would with no hesitation clone, steal and do everything else necessary to obtain the seeds as farmers in India and Bangladesh are doing now. And then prevent Greenpeace activists from destroying it with any means necessary.