Generally speaking, affordable housing advocates incidentally advocate for more efficient land use, because that’s one part of the strategy to build cheap places for people to live.
It'll cause some immediate societal issues like an unbalanced population pyramid just like the boomers did. But it'll be better in the long run.
For example the USA could end its refugee intake program (which Biden has increased by 50,000/year to 62,500) - which alone will bring in a Wyoming's worth of people over the next 9 years.
Secondly to limit immigration only to other highly developed countries: https://en.wikipedia.org/wiki/List_of_countries_by_Human_Dev... And to persecute and physically prevent all unauthorised arrivals.
[0]: https://news.yahoo.com/average-cost-college-jumped-incredibl...
[1]: https://archive.curbed.com/2018/4/10/17219786/buying-a-house...
But that doesn't mean the previous generation got a better deal. When my Dad bought our first home the interest rate was over 10%. And how did he pay for college ? He had to fight in a war and then work at the military morgue. He never recovered from this.
I am not trying to win an argument here. It's human nature to focus one's own problems and assume others have it better. For the record, my dad would definitely preferred to have been born into your generation, as I would. Again that's not a counterargument but should at least help lessen some of the bitterness from these discussions.
And then you go on the internet and read how the post WW2 generation fucked everyone over - like....in US, sure. In the former Soviet block? Not so much.
Without affordable housing you might delay having children and getting married like I did. Wait too long and you might never be able to see your children or grandchildren because you won't have them.
Reframing it that way might reduce resentment and ameliorate this perpetual blame of the previous generations. You'll have to pick your poison just like previous generations did only to later be criticized regardless of which poison you chose.