It is crucial to read the studies to understand what is going on. A high fat diet is not a ketogenic diet. I looked at the 3 of the studies you picked and none of them listed the diet, they just said they were fed high fat. High fat in the presence of high carb will promote much of what you are talking about such as inflammation. Research often mistakes fat as being the culprit of negative outcomes in these high fat/high carb studies.

Additionally, duration of study is key. True adaptation to a ketogenic diet takes time so studies looking at markers following 5 days of a high fat diet will not be a good indication. Check out all ketogenic studies that are 4 weeks or longer and are actually ketogenic and not just low carb and you will see much different results! If you would like me to point you in the direction of more relevant research please let me know!