IMO, just because there is less interest in a sport, it does not mean that most people don't care. It may just mean that more dollars feed a sport for whatever reason. In a male-dominated society, I'd reckon most dollars go to male sports. For example, a single ballplayer received a 10-year contract for $330M. The number of people who bought the jersey and game tickets was an astounding number. But it hasn't boosted his performance or lifted the team out of mediocrity. Still, his name will probably be near the top of most people's top ten list. What does that say of most people?
Hope Solo's alleged assault was never proven, and the case was dropped. Bad behavior by her, I'll grant, but nothing on the level of punching out a girlfriend or wife.
What I know from a decade of coaching youth soccer, is that interest in soccer peaked in the US long ago, but continues to rise in the rest of the world. So, the decline of interest preceded Hope Solo by many years, IMO.
I support equality, and recognize I need to put my dollars and time behind the cause.