I do not consider the Wights (or zombies in general) as evil since they do not have a free will. They are more like a force of nature like a stampede or a fores

I do not consider the Wights (or zombies in general) as evil since they do not have a free will. They are more like a force of nature like a stampede or a forest fire. The will behind the Wights are the white walkers and if they are evil is still open.