That's actually a fair point. A while ago, pretty good athletes started to pick up golf and continued competing in the higher levels of the sport. I still don't think women's golf has that kind of draw. Imagine Serena Williams as a golfer. She could probably do some damage to a ball if she had the coordination for it. Are there any of those types of athletes in women's golf? Most of the bigger women I see in the sport are soft and pudgy looking, except Michelle Wie.
I don't think Serena could play golf and win at the LPGA level. She makes a living by overpowering and intimidating her opponents in a 1 on 1 game. She doesn't have the temperament to last 4 days, the pressures of a golf tournament are a lot different than multiple tennis matches IMO. You can play badly on one hole and make an 11 and miss the cut, but no matter how badly you play in tennis it's scored in such a way you can come back from even the worst mistakes. Consistency isn't as necessary as long as your best is really good. Even then, you can draw a fairly close comparison between first serve speed and clubhead speed as a measure of power; she's around the low 100s on average where the top men go from 120 to 135 on average, generally topping out around 150 for individual serves. It's not a stretch to say there's a 20mph difference, which is huge. In clubhead speed terms, Serena could expect to be hitting it almost as well as the average senior male PGA pro. And that would be the best part of her game, most likely. A lot of her speed advantage comes from height (better angle over the net) and her aggressive playing style, she's not generating racquet speed that's worlds apart from her peers except on the compact groundstrokes. She wins by getting a lot of aces, you can't really do that in golf. You can make more eagles than most people and beat up the par 5s, but it doesn't really work out if you're making bogeys all the time.