I don' think it is a binary choice. And what you do now doesn't need to be permanent.
I had 3 kids over ten years, youngest is now 6. I took long mat leaves (1 - 2 years) but always returned part time. I have done 2, 3 and 4 days per week at different times mainly driven by how much i could stomach being away from my youngest (I really really hated leaving them as babies plus I breastfed them for quite a long time). My DH has done 3, 4 and 5 days at different times.
Overall, I would say that after they turned about 2 I found I was more motivated to succeed in my career than pre-kids, esp financially, because I felt like I was batting for our family as a team. After my 2nd was 2 I pivoted from working in IT in gov to a "big job" in professional services, still part time. I negotiated a huge pay rise as part of the move. Ironically, pre-kids I stayed stuck in my gov role because I thought it would be family friendly but when I actually had kids I felt braver. I basically decided that I am a hardworker who takes on responsibility so I might as well get paid for it.
Now I am still our main earner and it would actually be better financially if I worked full time and DH worked 3 days but we found that did weird things to how he was treated at work, his mental health and our marriage so for five years now we've done 4 days each.
We have also altered hours across the week within the 4 days. For years I didn't work Thursday but now ours are all (finally!) in school, we both work school hours on 2 days per week so we only need after school care on one day.
Oh and my DH was also not a natural with our kids as babies and toddlers but his half day of childcare per week when i very first went back 2 days per week in 2012 helped him learn. To begin with they used to drop me at work, go to a cafe for lunch and then a baby swim class. Really this was because he didn't have the confidence to cook them lunch, entertain her without a teacher telling him what to do or be at home with her unless she was asleep!! He did improve with time...
Agree with you, the rightwing push to have women voluntarily (?) withdraw back to the home and hearth is dark. Lucky most of us need two incomes to pay our mortgages really, eh?!!