"OK, Boomer."
I don't know what a boomer is. I try to shield myself from such trivial fads as naming generations.
But the phrase sounds almost as odious as "OK, (insult to African Americans)" or "Whatever you say, (insult to women)." One of the delusions of our age is that judging certain groups is the ultimate evil, while other groups just have it coming.
I neither know nor want to know exactly what a "Boomer" or a "Millennial" is supposed to be. We are human, and all that is human should be common to us. I study history because I believe we can learn from every generation of man and woman. I study cultures because I believe the seeds of truth have been sown universally. I can understand recognizing the limited experience of the very young, while respecting their energy and enthusiasm. I read literature because in it, the experience of other ages, beliefs and cultures, of both genders, of war and peace, of riches and poverty, of life and death, of Earth and the stars, become our shared experience through the sympathy of imagination.
Anyone who presumes to dismiss someone's opinion because they belong to an older generation is a narrow-minded and sad little bigot. It is as much as to say, "I'm still a child, though I lack some of the virtues of childhood. I choose to remain like the turtle in his well, seeing a small slice of sky, and contemptuous of the wider world."