Get real. ID Software showed the way to do this in the 90s and early 00s when they released the source code to their early Doom and Quake games, sometimes only 3-5 years after they came out. They didn't give up rights to ip and they didn't give up trade secrets either. Not only have those games enjoyed a high level of support ever since, but it's also enabled new creative works to be created even to present day. (ie Selaco)

Just say you'd prefer it to be legal for these corporations to defraud customers as a regular business practice rather than it be mandated that they can't do that and move on.