I was not going to add anything to this thread as it often seems that, if somebody says they don't like a particular wine/region, etc., it can result in others being defensive, which is a bit odd really as personal tastes are just that. But I decided to add a comment on how I have approached things, not that it may be of any interest.
As I have tried to learn about wine over the last 20 years, part of my (somewhat haphazard) approach has involved trying wines made from as many different grape varieties as possible, accompanied by exploring different regions with a focus on a specific region form time to time. But with so many possibilities to try, after a few very negative experiences (based on my own personal tastes), I just give up as it seems to be a bit of a waste of time and money, neither of which are in abundant supply, to keep trying to enjoy or "get" something in such circumstances. Of course, this means that I may have only tried wines from producers who make wines that don't appeal to me, so there is a chance (strong likelihood really) that I will miss some potential enjoyment from others. This is the case with Barbera: I had not found any that I liked at all and had pretty much given up. Then a bottling by Michele Chiarlo opened my eyes, and I have bought a few more (not many) from different producers to try. One region that I just could not find any personal interest in is Beaujolais and have fully given up on, but the sample size has been small. I am sure there are plenty of wines I would enjoy, but I am simply not prepared to spend any more time and money trying to find them.
Another comment: thank goodness we all have different tastes and preferences so that there is such a diverse range of wines available for us.