I think the thing with Worf is that he has always felt alienated from his peers. And I think as a kid, he attributed that to being a Klingon raised in human society. Which is, of course, part of the reason he clung so hard to the idea of being the perfect Klingon. But as an adult, when we see Worf with other Klingons, it is clear that he also feels alienated from them. I think a lot of the behavior he attributes to Klingonness is just autism. Like, yeah, being stubborn, obsessed with rules, and truthful are not inherent Klingon traits like Worf wants to think. Worf is just like that. Because autism. And I think this also plays a large part in how and why Worf struggles to connect to Alexander. He expects him to be honest and logical because that is how Worf is and how he believes Klingons to be. But Alexander is not those things because again, many traits that Worf attributes to Klingonness are just Worf traits. (And yes, I say logical, Worf is a character who can always explain his actions, a child doing something and then not knowing why is foreign to him).