the zombies walk too slow to really do anything.
I understand about fast zombies/28 days later or The Last of Us with the fungus spread and they're super strong and super fast.
But The Walking Dead zombies? Wouldn't be a huge problem. Would be super scary for sure. But it would be like Ebola, it would pop up every now and then and then go away.
In The Walking Dead, I guess I dont understand why they can't (1) kill zombies by the barrelful, like thousands of zombies a day
(2) get the electricity back on
(3) society gets relatively back to normal