If you had said "No one ever decided not to use D because of the GC" or something along those lines sure... I'd agree. But your claim was "No one ever decided to use any language whatsoever because it didn't have a GC." and that's simply untrue. If C++ got a GC I would immediately stop using it and would have never used it to begin with.

All the rest of your points in your follow up post are very specific to D and yes, those other points are all legitimate reasons people don't use D, regardless of its GC. It's simply that your original claim about language preference on the basis of GC was not specific to D and it's certainly false.