Personally I do agree with him, mostly becuase Nixon was so overbearing that anything Kissinger proposed had to be examined and authorized by Nixon. Like the whole point of Kissinger's office was to allow Nixon to run his own forgien policy. And to their credit they did do detente with the Soviets and went to China ( which is why a lot of Chinese really like Kissinger and Nixon, of which I am also probably subject).
To their detriment of course is that they killed millions of people, but this is also true of literally every other American administration.
I think the main reason that Kissinger sticks in our minds is that he and Nixon explicitly highlighted their forgien policy becuase they were forced to carry out the Great Society at home by the Dem Congress.
i think the one thing you can really say wouldn't have happened without him is the sabotaging peace talks to get nixon elected, but he definitely oversaw one of the most directly violent periods in american foreign policy so don't necessarily know this holds up? but his role in history is exaggerated and there are a lot of lesser known monsters in the history of :amerikkka:
edit: it's basically impossible to quantify this kind of evil though. is kissinger directly overseeing the bombing of millions more or less evil than the overthrowing of allende or arbenz? do you judge by death toll? if so, how do you measure death toll, because a lot of these things have 'unintended' consequences and a bunch of deaths the architects might not have aimed for happen.
basically what i'm saying is there are probably hundreds of different lists you could come up with that would be totally valid depending on the parameters you set.
Ya, it's hard to argue which administration had the worst cost in human lives, especially given all the subtle and uncountable ways that American hegemony kills people. But I do think everyone is too focused on Kissinger and not the hundreds of other people still alive that have done just as evil shit as him.