I don't think this is the win you think it is.

That statement has always been problematic, and generally, even the people uttering it know it. Those that don't, who genuinely believe it, well, yeah, that's hate speech. That should be addressed.

Many feminists have been working to address this exact issue with their messaging. Discussions around "toxic masculinity" being the issue, not men themselves, and "Not All Men, but Yes All Women" draw attention to the fact that _enough_ men are dangerous, and enough men allow it, that there's a good chance that any woman you meet has a "harassed by a man" story.

Further, you and I are using the phrase "men are scum" without it being hate speech just fine, since we're using it to discuss an important social point. But using it to vilify an entire gender? Yeah, that's hate speech. You've hit the nail right on the head.

Yes? "$GROUP are scum" is absolutely hate speech.

Well yeah, that's the exact kind of needlessly aggressive and divisive rhetoric this is meant to prevent.