I doubt it. Much of the same would happen with sane people in power.

The demographic transition:

• means longer life spans (which means that older people use resources which would be used by new generations in a pre-transition society)

• means lower infant mortality (which means that people don't need to reproduce a lot, as their children have good chances of surviving childhood)

Whatever additional processes are in play, likely aren't amenable to change either.

• people have an increased tendency to have children after achieving economic certainty

Result: some never achieve it, some achieve it when less fertile or infertile, some when their own parents already need care.

• people have an increased tendency for solitary lifestyle

Result: people live separately from their parents more often, and expect it as a criterion of normal life, as a result of which grandparents are less available to help with child care.

• people have better education about their fertility

Result: children aren't had accidentally.

Changing some politicians seems unlikely to change that, unless a new social agreement forms. What that agreement might be, I don't know. I speculate it could be "consider having children before building a career, to enable this, very strong welfare guarantees are offered to parents raising kids".