Why is there less interest (and as a result, less money) in women's sports?

I don't think it can all be boiled down to lack of slam dunks and stuff like that. There's a big cultural aspect to it.
I think many view women's sports as less than simply because they include women.

Take golf as an example. Are more people tuning in to men's golf events simply because they drive it harder off the tee? I doubt it.
I'd say the big spectator attraction in pro golf is the skill of the players (which I'd assume is abt equal between the genders), not necessarily driving power (where men have the advantage).

So why is viewership (and as a result, prize money) lower for women's golf?

I could make the same case for women's soccer, but there'd be much more debate. But to me, men's and women's soccer looks identical. But the interest and pay gap is huge. Again, why?