Recommended reading: https://www.amazon.com/Against-Intellectual-Monopoly-Michele...
Industrial secrecy doesn't seem like a better system. Perhaps you'd like shorter term patents, or want to fix some other deficit?
But, if that’s true for software, why isn’t it true for other fields? Simply put: what evidence is there patents are a benefit to society instead of a harm?
Software is different, in that source and decompilation exist, you can't really keep it secret.
Also, there is no such thing as a software patent.
Nothing. Industry secrets is a far better model than giving major corporations access to government power that they can use to crush smaller competition, sometimes for work that they stole from the smaller competition.