I have never been interested in some of the topics Kurzgesagt makes videos of like the ''space stuff'', but they are making it so interesting that I love to watch them.
When it comes to more controversial topics they always try to show both sides of the story. I really feel like they at least try to be as impartial as possible which really gives them the points on credibility.
I hope they would make more videos about human behavior. My favorite video from them is about loneliness and I really think it is helping many people out there who feel lonely.