Is that true? In more "traditional" times, the husband went out to work while the wife stayed home and managed the household and raised the children.
Today more and more families need dual incomes in order to make ends meet.
Either way, I don't think "the 1900s" is a good comparison. Perhaps 1970-2000 or so is reasonable.
Anyway, to counter your anecdote with another: when I was growing up, my mom was a stay-at-home mom, and she spent a ton of time (very much of it quality) with me. I saw my dad less, of course, but he was reasonably present when he wasn't at work, and I have lots of fond memories of quality time with him.
Nearly all of my friends today who have kids are dual-income. They send their kids to daycare as soon as they're old enough, and then pre-school. The kids do get a lot of socialization with other kids (maybe more than I did in my first few years), but I'm certain they get less time (and probably less quality time) with their parents than I did.
There’s some “well we have no idea how much is quality time” argument, but just looking across my own families over time the reality is more like modern parents being way more present than their parents.
The issue lies elsewhere. It’s almost a zeitgeist, the direction and evolution of ideas, and less any actual cause. At least that’s how it seems to me.