You are comparing the NBA which has been around before I was born with the WNBA which is going into the 28th season. There was no interest or marketing for Woman’s basketball here in The United States for any level of Woman’s basketball, much less a professional league. Despite the lack of funding, marketing and inadequate development for young girls, interest has skyrocketed. There are now more opportunities and therefore more girls are interested in growing their games and that has helped catapult the popularity of women’s basketball. It took a Caitlin Clarke type from the Midwest state of Iowa to bring more eyes on the sport with her passing and long range shooting. She brought a large following and so did Angel Reese. This along with the league marketing Aja Wilson more and Sue Bird , Ionescu, Kelsey Plum, Naphesha Collier , Stewart, Boston and others . He league has a great influx of talent and some marketable veterans .Found this interesting article.
NBA vs WNBA: Revenue, Salaries, Attendance, Ratings
How does the WNBA stack against the NBA in terms of revenue, salaries, attendance and ratings? WSN launches into a comparison of the NBA and the WNBA!www.wsn.com
Some things that jumped out to me was the sheer volume of more games played by the NBA, compared to the WNBA. In both the season and playoffs.
With the massive attendance difference thrown on top of the massive number of games discrepancy, on top of the massive viewership difference, one can see why there is a revenue difference that isn't because of marketing.