GPL is Broken

Invent your own language. Import GPL code into it. Publish resulting source code, but avoid publishing the compiler or language specification.

Now technically code is open source, but nobody, beside you, can ready it or compile it.

I think GPL is an instance of halting problem and Stallman is a retard.

GPL doesn't make your software "free as zero-cost".
Its explicitly mentioned..
https://www.gnu.org/philosophy/selling.html
https://www.gnu.org/philosophy/selling-exceptions.html