Congrats, you are improving. From "certain" statements like "Klopp isn't quiting" to "almost definitely".
For the rest, it's quite simple:
Yes, presumably all the guys that THINK he'll quit have also no inside knowledge
No, i don't call them out and have no problem with them
Why? Because they (or at least the ones i read, as i didn't go through the whole thread) wrote their opinion ("i think", "he will probably quit as he did before", ...) while you wrote it as an absolute fact ("he isn't going to quit", "no one quits if ...", "If he did quit his previous role it’s because he already had Liverpool lined up, it wasn’t because he was ready to gracefully admit defeat and fall on his sword")
If you really don't see what's wrong with this way of expressing an opinion like a fact, good luck.
The funny thing is i am probably not so far aways from you opinion-wise. Klopp may be a nice person (from what i got out of his interviews about other things than football) but for sure he loves money, otherwise he wouldn't do so many ads for things like alcohol, betting sites, and so on. Therefore i'd agree, i also think he won't quit the Liverpool job with so much money on the line. But who am i to judge this so definite? All i can do is saying what i believe, but not what he "will do or not do" with as much certainty as you do.