I've been playing wows for a while now, (I admit to taking a long break last summer) and have focused mostly on light cruisers. I've noticed that I'm having issues combating Gun focused destroyers, they'll kite to maximum range, dodge my fire and hail down return fire and while I do still land hits they can out dps me meaning they often win the engagement. After one too many deaths it got me thinking, What can a CL do that a DD cant? AA for one, but if a CV wants you dead you're dead regardless of ship, CLs also heave more health but DDs lack citadels, are faster more mobile and smaller targets, CLs tend to have more guns with a slightly larger caliber (although now that some DDs are getting 130+mm that debatable) but DDs have much better rate of fire meaning the shots/sec tend to be in the destroyer's favor. CLs might have longer range but DDs are stealthier and hold a distinct advantage at long range. The CL may win close range gun duals but all DDs have torpedoes and more importantly the speed and stealth to dictate the engagement.
so ultimately am I missing some critical flaw in DDs or are CLs relegated to being consumable batteries for BBs, not daring to shoot lest they be spotted and citideled, or burned alive in open water by DDs doing the CL's job better than the CL ever could?