I'm not attempting to argue communism is not bad in my comment, I believe this is even more true if you believe communism is bad.

I am strictly saying comparing Nazism and communism does not give a full picture, which is, AFAIK, something that experts in Soviet history, some of which I quoted, agree with.

What I'm trying to say is that comparing the two you risk either reducing the weight of crimes committed by Nazis, which are worse than those committed in any communist state, I hope you'll agree and also risk loosing the detail distinguishing the two.

I would elaborate further, but I want to make this comment shorter to make what I'm saying a bit more accessible.