Your claim was that it could not be done in cpp, not that it was faster/simpler/whatever-new-goalpost-you're-now-presenting in racket.

You need to reread the reply they made. They asked how you would do it in cpp, not that it’s not possible.

I think this novel discovery is worth a turing award indeed! I'll be sure to refer you for one. Maybe even an honorary doctorate at my alma mater.

You could have made your point sufficiently without being condescending.