I think it makes sense. Some generations are bigger than others, and the bigger ones (like the one this guy is complaining about) can throw their weight around at the expense of the others. They carry more political weight.

I, for instance, was born in a smaller generation. The baby boomers will control things for a decade or two more, and after they start dying, those younger than me will become dominant.

I'm not really that concerned about this - I came to terms with it long ago. But it's still there, and I can understand if some people get bitter about things like this.