Not with the Europeans that I know, they are all absolutely aghast at every single murder. It is one of the reasons EU countries are reluctant about participating in any war, they always hope to avoid it (and as a result sometimes get much larger ones...).
Hard for me to see anyone who says an American civil war is a best case scenario as not cheering for American deaths and I'm skeptical that this was written by an American as it sounds far too out of touch and 'wishcasty' as someone else said.