I honestly think Corsairs deserve their own special place below Necrons.
They are particularly awful, necrons are only as disastrous as they are now since they get hit hardest of all by what tops the meta right now.
I guarantee you'll see some necron success once the Nid Carrier builds get their inevitable nerf.
Oh, I think we all agree that Corsairs are just the worst. But Necrons are cooler, so that's why it's more sad.