I do take Kissinger and Mearsheimer's views seriously, and I did not call Kissinger or Mearsheimer "biased". Instead, I attempted to address my understanding of the reasoning behind their statements (Mearsheimer certainly; I believe the same to be true of Kissinger). That reasoning led to many of the successes and not a few of the failures during the Cold War; it is worth taking seriously.

I disagree with the Great Power reasoning mostly because it is explicitly amoral and moral standing is important (at least from a morale viewpoint :-) if nothing else). That's completely unimportant. On the other hand, all of the honest-to-gosh International Relations people I've heard from (at least those under 70) also disagree with it, for a variety of reasons, and I take that seriously too.

I further believe your last sentence is a gratuitous misreading of what I wrote.

ROTMetro was making a moral statement about Russian aggression. Henry Kissinger can be as omniscient as God himself and that still wouldn't be a counter to a moral claim.

Never underestimate Kissinger's inability to consider what Mearsheimer calls 'the moral dimension'. That's more than a bias. That he holds an ammoral, great-power world view to back up his psychopathically immoral actions over the years should surprise no one - millions of needless deaths can arguably be laid at his feet.

Maybe keep those limitations in mind if you intend to defer to him on Ukraine/Russia.

Are you personally involved in this war somehow?