I think the point of "OK boomer" is to say it to ANYONE who does something that fits under any of these Boomer stereotypes:
- Criticizing or expressing dislike for youth, youth culture, youth technology, or youth politics (with smugness and stubbornness)
- Making a wife joke that hasn't aged well (with smugness and stubbornness)
- Making a racist or LGBT-phobic comment that hasn't aged well (with smugness and stubbornness)
- Supporting Trump with white masculinity (with smugness and stubbornness)
Meanwhile, the point of Karen is to just make fun of middle-aged moms with a very specific blonde haircut who are impatient, bossy, and want to speak to the manager now. The Karen look is so iconic, its hard to apply it to anyone who doesn't look like one, especially an entire generation, so the "Generation Karen" thing is pretty desperate.
- Criticizing or expressing dislike for youth, youth culture, youth technology, or youth politics (with smugness and stubbornness)
- Making a wife joke that hasn't aged well (with smugness and stubbornness)
- Making a racist or LGBT-phobic comment that hasn't aged well (with smugness and stubbornness)
- Supporting Trump with white masculinity (with smugness and stubbornness)
Meanwhile, the point of Karen is to just make fun of middle-aged moms with a very specific blonde haircut who are impatient, bossy, and want to speak to the manager now. The Karen look is so iconic, its hard to apply it to anyone who doesn't look like one, especially an entire generation, so the "Generation Karen" thing is pretty desperate.