China's Sheng-nu phenomenon is a vast example. The West does not put social pressure, but the same tendency is observable: the more educated and accomplished a woman is, the smaller pool of men may suit her. Self-asserted women would rather freeze their eggs than settle for a real guy from around.

Which views rely more on anecdotical evidence: that families with women as principal breadwinners are totally fine, or not at all? It is yet easier to settle maturely for a marriage than make a childbearing compromise. Divorce rates are "scarily" growing, and women initiate a great majority of them. They seem to enjoy indignation towards "subpar" husbands rather ruthlessly.

The whole demographical transition to lower birthrates has a more detailed explanation in the theory that more educated women are much more choosy and (at least) less enthusiastic with bearing children with men of about equal status. UN data says that we just reached peak baby, with significant exception in Africa only, where prospects for improving status, the living standard or marrying up are still well believable.

For the rational PUA frame on this, you may check the 25:55-33:00 part in this video. (If you continue to listen, you may learn about his marriage.)