The “Okay Boomer” meaning is basically just saying “we don’t have time for conservative bullshit”, I can really empathize with the sentiment behind it.
The whole reason for the “Boomer” usage is just a natural response to all the “Millenials” flack. they’ve been blamed for things going downhill for a while. why not throw a little shade back on those same people who actually shaped where we are today? Fair play, well played. indeed we don’t have time to wait around, we need change yesterday.