Boomers aren't as big a part of the problem that Millennials think

[Shiranu]

Well, and the "change" is young rich white-passing males (and females!) who are ultra-conservatives (who sometimes literally change their names to be white passing and not draw unwanted attention from the uneducated base) and who think the boomers aren't being shitty enough.

So, not my favorite type of change.

[Gawdzilla Sama]

"Age and treachery will overcome youth and skill every time." Nothing new here.

[PopeyesPappy]

I'd love sources. 

You don't need sources. Just a basic understanding of how both houses of congress works.

All new bills are submitted to a committee. These committees are the people that decide whether or not a bill gets passed on to congress at large. The committees are controlled by a committee chair. Traditionally, but not always, the committee chair is the senior serving committee member of the majority party. Since a lot of these people tend to stick around for decades a high percentage of committees, especially the more powerful ones like finance and armed services, are chaired by some of the oldest people in congress. For most of the last 20 years this controlling demographic was the silent generation. Although right now the youngest members of the Silent generation are in their late 70's. So on average with each 2-year election cycle we get fewer Silent and more Boomers.

Once a bill makes it through committee it still has to be voted on. Whether or not a bill gets voted on is almost exclusively at the whim of the majority leader of the house or the senate. While party leaders are elected and not necessarily the oldest members of congress, they are usually people with at least some seniority. For example Nancy Pelosi, a member of the Silent generation, led the house democrats for 20 years prior to the last election cycle. Republicans have actually been better at selecting younger leaders than democrats. Dennis Hastert was the last republican from the silent generation. He was the house majority leader from 99 through 2007. Since then the Republicans in the house have been led by younger people. The bottom line is that the house majority leader was a member of the Silent generation for 16 of the last 24 year.

All this aside something else to keep in mind is that in the 60s and 70s it was young Boomers that were fighting for progressive issues women's and minority rights. They were fighting against the majority Silent generation and their leaders from the Greatest generation. Things haven't really changed that much 50 to 60 years other than the names of the generations. It is still and probably always be younger people fighting older people for change.