First of all, let me just say thank you for what has to be the most Scottish ask I’ve ever gotten.

Second of all, I have found some sources that might help you to understand the Clan Campbell point of view. To start off with, you’ll probably want the Oxford Companion to Scottish History as a reference tool. Next, Edinburgh University published a three-volume History of Clan Campbell by Alastair Campbell, which covers the history of the clan from the founding to the present.
If you’re looking for material specifically on Clan Campbell’s many feuds, there’s Oliver Tompson’s The Great Feud and Ronald Williams’ The Heather and the Gale.
And if you still need more material, there is in fact a Journal of the Clan Campbell Society put out by the Clan Campbell Education Association, which runs to more than 30 volumes.