You do realize that's an opinion, not fact? Maybe an opinion held by a lot more people, but still only an opinion.
I think the ratings and attendance validate that opinion.
The games are different looking, so why bother comparing or declaring one superior to the other? I enjoy both the women's and men's versions of the game. And the women's game has definitely improved since the league first began.
If you think a sport is superior, because of how many people watch and avidly follow it, then soccer is by far the superior sport to baseball, football and basketball. It's not even close. I guess soccer is just more "fun to watch."
In this country, soccer is not the most popular sport. Not by a long shot. Internationally, sure, but we're not talking about international leagues. We're talking about two leagues based in this country.
I don't think there's any argument that the NBA is more popular than the WNBA. I don't think that's your argument either. But I do take exception to the argument that the main reason the WNBA isn't as popular is because it's a women's league. I don't watch WNBA because it doesn't entertain me. I don't watch women's college basketball (or men's for that matter) because I don't have time anymore, and they were the least entertaining on my sports tree. I make time for the NBA, the NFL, college football and Major League Baseball, because they entertain me the most.
And it's not all about dunking and shot blocking and brawls, either, although it should be noted that the brought back the Dunk Contest for a reason. And it's not about showboating and one-on-one play and athleticism, or else the All-Star game wouldn't be getting less popular every year.
I don't think the WNBA has built a particularly good brand (as evidence, consider the cheesy team names, which are mostly derivatives of their NBA counterparts; none as embarrassing as the "Thunder"). It's not marketable, and it doesn't attract a significant number of casual basketball fans. I can't say much for the level of play now, but it struck me as vastly inferior when the league was first developed.
Anyways, I don't think it's fair to say that the main reason people don't like it is because it's women's basketball. That may be true for some, but I personally take exception to it. And I think it would be far more constructive to acknowledge that the WNBA has image and marketability issues, and figure out how to address those, rather than just spending more and more money on advertising, trying to force it upon people who - rightly or not - have sworn it off forever.