Sure there's nothing wrong with it. As long as you don't think you know it changes anything or especially changes the fact there are people just as vile as him currently in power, Nuland, Blinken, a few others. I think it's unfortunate many who rightfully hate on Kissinger for crimes that are okay to admit will also deny more recent crimes (Ukraine for instance) and not see the modern Kissingers actually wielding power and destroying human lives as we type to each other and not hope and pine for their demise as they have for Kissinger.