How important is the knowledge of a language versus the games that you have developed in your portfolio?

To be more specific. Personally, I dislike C++ for several reason(mainly due to it's complexity, and pointers, and I prefer D as my language of choice thus far. Due to this, I've written two games in D instead of C++ that are my personal projects. Am I wasting my time with D? Should I start using C++ again?

For reference, I have 6 months of experience in C++. It's the first language I learned. I have messed around with SDL/SFML and a bit of Direct3D with C++ as well.

Even though I like D, i'd rather not waste my time learning it, if it in no way will help me get a job in the gaming industry.