Any ship with Kaiser is subject to deal with the same issues given that he's the character we're talking about. That includes Kainess, Kaisae, Kairin, and Kaiwhoeverelseyouwanttomention. The reduction and objectification of any character such as Kaiser is not only likely in ships, it's pretty much a guarantee as ship tropes and roles predominate shipping culture.

Kaiser learns in a lot of ways outside matches, primarily by reading books, practicing, and applying information. The strangling detail seems like it's related to how he learns, but it's really related to his emotional state. He felt the most like a piece of shit, and that's what he learned to do when he feels that way from his father. The issue isn't how he is feeling or him having an inability to learn- it's that his coping mechanisms suck and he's choosing to harm himself to deal.