Sorry, but this just seems completely unrealistic. The commercial software development industry in any country that adopted such a law would become a toxic wast

Sorry, but this just seems completely unrealistic. The commercial software development industry in any country that adopted such a law would become a toxic wasteland. Open source has always had a terrible track record of producing effective, commercially viable results, and you would be reducing the whole industry to that kind of level. Not that you could pass the laws required to make it happen without causing a major diplomatic problem anyway since it would probably violate about a million provisions of the WIPO treaties and so on.