They want them, but the environment they've shepherded or (more commonly) been swept along with, isn't conducive to having them.
The purpose of a system is what it does. Right now, the system makes it really hard to keep stable work, at high enough pay to either stay with the kids and raise them, or else afford daycare to raise them part-time for you; maintain a safe environment, starter home, all that.
So it goes. One way or another, we've built/voted-in/stumbled-into a system where the younger generations shouldn't have kids now, possibly ever, unless a drastic correction happens to improve the trajectories of their lives.
A great point, but I don’t think those policies should go after the (relatively tiny) wealth that boomers et al currently hold. As another commenter alluded to, the money is going to have to come from much bigger fish; there’s literally nowhere else to get it from!
Parents and Grandparents might not be interested in starting families, but they're interested in their (grand)children starting families. Ideally, that's where their wealth would go, except that it's being completely obliterated by retirement and end-of-life care.
If that were true, US policy and trends would reflect that. Instead, as groups, we are seeing earning potential decreased in the young and wealth increase in the old. This is a dysgenic shift. Coupled with AI, which when viewed as a force against labor is a product that reduces the earning potential of the young cohort as a group, this is not sustainable. The lack of stability and opportunity for young people is the sort of stuff that leads to revolution.
I hate to tell you, but no generation is particularly interested in starting families at this moment in history. This is the closest thing the world has gotten to a general strike to force capitalism to slow its roll.
Yeah, with apologies to the mill which demands more grist, we grew up hearing that if you can't afford children, then you shouldn't have them. And we learned that lesson. Lived it too, from the other side. Our parents couldn't really afford it, and it's tougher now than then, getting tougher still. So it goes.
We've already seen 20 years of policy driven by people who don't care about families being started.