Aside from the fact that this assertion has nothing whatsoever to do with the topic, it's another manosphere lie. It was true 50 years ago, but not in the present.
“More women than ever before are marrying for the first time at age thirty, forty, fifty, and even sixty. Feminist icon Gloria Steinem married for the first time at the age of sixty-six. It is simply not true that high-achieving women are especially at risk for a lonely old age.” Marriage, a History (p. 284).
“Analysis of collated data from the US Census Bureau proves to be revelatory. Out of 100 U.S. marriages, 12 involve an older woman and a younger man.”
“These tropes from a bygone era about women wanting to marry a man primarily for security and running out of time if she doesn’t lock one down by her early 30s just aren’t borne out by the data. As more women make economic gains, more and more they want a man who not only pulls his own weight but who is also a true partner. Perhaps the persistent stories about women who are too educated or too successful missing out on love are being passed around by the segment of men who don’t want to come into the 21st century and act like the partners that so many women want.”