There are interests that different generations tend to vote for, that have led to noticeable quality of life changes for future demographics. Politicians have an outsized share of the blame, but they
do respond to the people who actually show up and call them on issues. You have more power than you might otherwise realize (at least in the US I know this is true).
Not saying it's a ton of the generational blame, but if you have wealth, you have power and you can sway things. And if you would advocate for the right stuff, then I don't consider you part of the generational problem. It's just a pretty accurate numbers game that most of the boomers I see aren't helping out with a lot of the decisions that were made 30 years ago that proved to be bad...
Edit: Even the boomers I know who are trying their best acknowledge that their generation made some mistakes (my generation will make mistakes too). Getting defensive about it misses the point.