First of all, if you aren't playing on the "Hard" difficulty setting, you're feedback is going to be less useful.
No one cares about difficulty, this is not some competitive game and therefore it is meaningless to the discussion. Furthermore, the title has already been disproven and the whole discussion is a joke at this point. Melee are not terrible, not even bad, they are good to op depending on your level, gear and build.
If there is a problem with melee in hard difficulty than this warrants a completely different topic which I fore sure will ignore since hard mode does not interest me at all in cRPGs.
What I personally can agree with is that melee is limited in the range of available skills being limited to two skill lines and I for sure would like to see two more in the future (dual wield and sword&board) but that again is a completely different matter.
Also the people who argue for melee being good/strong have presented way better arguments.