Really don't see what any of these points have to do the assumption of him being a teacher. Also already gave my assessment of why I think not entertaining discussion about Krog specifically is reasonable, given how non-specific his rant was, so we're talking in circles there. Aside from that, if your response is "I don't care if you disagree", then there's not much more to talk about, really.
Huh? What are you even talking about? You quoted my defense to your suggestion that me using "accusation" implies that I think being a teacher is negative, which it fundamentally doesn't. What does you also not feeling that there's anything wrong with being a teacher have to do with that?
I found it out of the blue that you were so persistent about leaping to it being true, despite flimsy evidence/reason to think this at best, and many other possible/plausible explanations which I provided (both regarding why someone who isn't a teacher might argue that way and regarding why someone might not answer your repeat question. Suspicion/curiosity and the absence of an answer isn't evidence.
I just fundamentally disagree that this is reasonable to insist on or that there is an obligation to bring a tangent you make back to the original discussion. Hypothetically, the sentiment may apply to Krog specifically, but may not be universally true enough to justify the statement being broadly adopted. If he's criticizing the generalization (which probably applies to teachers more than sports coaches specifically) and not the specific case, it makes no sense to continuously say "But look, it applies to Krog, and this is a Krog thread, so you must put a premium on this specific case" as if it were some gotcha. You may more reasonably say "This is a Krog thread, so your point is completely off topic-- delete it because it's against board rules" (though I personally don't agree with being that much of a stickler) but guilt in going off topic doesn't give you carte blanche to reframe what was actually argued in order to fit what WOULD be on-topic. That doesn't really make any sense to me.
Also, as mentioned, it was basically just a single rant, but if people repeatedly challenge you, naturally you're going to go into further detail and seem "weirdly defensive". I've fallen down that same rabbit hole plenty of times (hell, I kind of am in this very moment with you in this discussion). It's just a trap that certain types can fall into. I mean, aren't you doing it now too?