The "we" in this is a missing a piece: the size of the labor force. It's shrinking. Has been for 20+ years, with a peak around 2000.

Some people are working hard. The growing demographic is the retired, the trust-funded and those NEET-ing around on various forms of subsistence income. Another few years we'll be back to post-war levels ~%58 of participation, where two-parent homes prevailed, and one stayed home.