Maybe you just don't like them? There's nothing wrong with that, but if so far they really have not done anything for you, then you should probably not keep trying. It could simply be that's not the grape or blend for you depending on which you have had.

I remember seeing one on a menu in a steak house that I wanted to try and did not want a heavy wine, and the waiter did his best to talk me out of it saying they were all horrible wines, etc. Some people just don't like them.