This is pure anti GMO propaganda.
"it's covered by a thicket of patents from about 30 companies"
The patents have been waived for humanitarian purposes. Also rice is self polinating so of little interest to seed companies.
http://www.goldenrice.org/Content1-Who/who4_IP.php
"the government there quietly dealt with the vitamin A deficiency problem through a more low-tech and effective technique: vitamen supplements"
Really? 250,000–500,000 children in developing countries become blind each year owing to VAD, with the highest prevalence in Southeast Asia and Africa. I guess in your world that qualifies as effective. Even if they did solve it with supplements, wouldn't it be better to solve it already in the food, instead of spending millions a year on supplements?
https://en.wikipedia.org/wiki/Vitamin_A_deficiency
"The criteria for being licensed to grow golden rice is that the country grows less calories of food than it takes to support their population."
Do you have any sources for this or are you just making it up?
"Golden rice is basically useless except as a PR tool to clear the way for more profitable GMOs"
A classic anti GMO talking point with no basis in fact. Just because corporations use genetic engineering doesn't mean it can't be used for altruistic purposes. Have you considered the possibility that people are actually trying to solve a problem that kills tens of thousands and blinds countless more every year? I guess its easier to believe in conspiracy theories.