Well, 'civil war' here might refer to a civil war situation in general. 'Not a fix it fanfic' means it's not some kind of fan - made fictional work that aims to simply 'fix' things in an easy or unrealistic way. Maybe it's about stating that a real civil war is a complex and serious matter, not something that can be remedied as simply as in a fan - created story.
'Civil war not a fix it fanfic' could imply that a civil war is not like a fanfic where you can just wave a magic wand and make everything okay. A civil war involves real people, real political issues, and real bloodshed. It's not a fictional scenario where an author can just rewrite the plot to a happy ending. It's a much more complex and tragic situation in real life.
The phrase 'civil war not a fix it fanfic' is likely highlighting the fact that civil wars are far from being easily resolvable like in a fan - fiction. In a fanfic, the writer has the luxury of creating solutions out of thin air. But in a civil war, there are deep - seated historical, political, cultural, and social issues at play. It's a real - world catastrophe that defies simplistic 'fix - it' solutions. For example, in a fictional fanfic about a made - up civil war, the hero might just bring peace with a single speech. But in an actual civil war, it takes years of negotiation, international mediation, and sometimes even more bloodshed before any semblance of peace can be achieved.