Thanks for clarifying.
From what you said, I'm gathering that you're saying that you oppose "forcing" faith on somebody else. I also agree with this and believe that people should be able to practice their faith without forcing it on somebody else. However, using your faith to make moral decisions is absolutely okay in my books, unless the faith is radical as I have previously stated (ie. islamic radicals jihad belief).
Thus, believing and acting upon karma is okay.