Not surprised. Housing went up a lot in recent years and it is not affordable for most young people. And if you have to rent, why not rent your parent's?
It turns out if you do that the living space required to raise the next generation simply becomes inaccessible.
(Another way to look at it - people on new leases will often spend around 30-40% of net income on rent. In most instances this is a direct transfer to a retiree/near-retiree. Taxes, a lot of which also goes towards transfer payments, and other transfer payments to old people, are 40-50% in many countries. Taken together, younger, working people are effectively transferring 2/3rds or more of their gross income to retirees before spending the first cent on themselves. Why would anyone be surprised people are checking out of that system en-masse?)
Why wouldn’t they, when government policy has made it an asset class that can never fall in value?
The early 20s and 5X+ are the ones that have more time for politics. I would not read some inter-generational class warfare into that.
I wouldn't broadly blame generations for things. It is like that silly Karen meme service workers have. We are part of the problem too.