Interestingly, Denmark is now trying to make getting a divorce more difficult - due to tremendously high divorce rate there.
I do think many women do suffer from leaving having children until they can feel 'sorted' in their career and lifestyle etc. Women do have a biological clock, and the older you are the more difficult it can be to get pregnant; plus it never feels like 'the right time': the feeling that everything has to be 'sorted' first.
I appreciate some people do not want to have children; but most do, and increasingly women are not having the number of children they would have liked to, or even at all - and IVF and surrogacy rates are subsequently rising substantially
You cannot rely on the children of other societies and cultures to come and look after our elderly or pay for services here, when what most want to do is go home and retire in their own country. Society does need to replace itself. I do think there is a strong whiff of misanthropy in the suggestion that people shouldn't have children. That is literally one of the purposes of life on earth (in a sexed body).
Feminism need not just be about equal pay and on demand abortion; it can also be about respecting the differences between the sexes and affording women some dignity in those differences. There is nothing 'unfeminist' about deciding to stay home for a few years when children are small ( if you are fortunate enough to be able to). Lots of women are now having to go back to work after just. afew months , even if they'd prefer to stay with the child, because their lifesetyle now depends on two full time salaries.
Conservatism is not an inherently bad force; and in fact most societies around the world are pretty conservative - because when it comes down to it people value stability and a certain degree of predictability.