Actually, no feminist I have seen commenting on the matter has advocated for a literal police state to combat the problem, and I see no reason to likewise assume that that is what the makers of this video want (even if they did, again, it wouldn't invalidate their concerns). Cultural pressure is generally what feminists like to talk about; i.e., (to also answer Acala's question), if people have friends who harass others, they need to sit them down and simply talk about why it's inappropriate to do so. If this sounds preposterous to you, I'll offer anecdotally that I know plenty of males on my FB who said they would be discussing these issues with their friends. A lot of people frankly have no idea that what they are doing is wrong until someone (parents or peers, depending on age and the situation) gives them a real talking-to about it. I'm (I hope not too charitably) guessing a lot of the people who post on this board are decent enough to not associate with people who behave this way, or not to raise kids who act like this, but just in case... that would be my advice. Stating bluntly that it's sort of fucked up and gross to harass people and that you wouldn't remain friends with anyone who did it is a small action, but if enough people did so, it would be at least noticeably different from the current status quo.
"Do it because you want people to be better, and because you intend to hold humanity accountable for producing disgusting, petulant man-trolls who think they’re entitled to other people’s time and attention. Do it because you’re gonna stop the cycle of disgusting, petulant man-trolls right flipping now, in your own flipping life," to quote an article I read on this subject a few days ago. This is strong language that may provoke a typically defensive response, but to me, this is no different from countless libertarian-themed attempts to change people's minds re: the topic of big government. It's parallel to the philosophical activism that the namesake of this forum holds so dear.
Again, the rest of this post is mostly assumption. "She has no idea what males go through" - has she specifically spoken about the video yet, and have you personally contacted her to get her opinion? Yes, there is a violence problem in bigger cities, but this isn't a time to be hosting the Oppression Olympics right now. This is a video made about the very specific issue of catcalling, and how catcalling indeed ties into larger problems of violence and poverty. The very fact that this sort of behavior occurs across all manner of social situations and settings, however, means that catcalling and the entitlement mentality are "real problems" in and out of themselves. Catcalling specifically is not chiefly a violence and poverty problem, it's in all likelihood a breeding and cultural problem that is reinforced by popular culture and a few other forces.