You can copy binary code. Just as easy as source code.
It is only when running on a different architecture it gets a bit more complex.
And give the binary is directly translatable by software. Not hugely more complex for any company of the size you are unwilling to fight in court over open source code.
Sorry but no you are wrong. Hading the source in no way makes code harder to copy. Its how most of us hacked into games in the 1990s.
After all binary code is just simpler instruction set that takes very very minimal effort to convert into assembly language. And can be read by many even without that effort.
Its hardly a secret encrypted format. (Unless you are also designing your own hardware and not letting anyone see that. )