I agree - Her premise was sound. There are indeed a few freaks out there who prey on women, and good men should be aware of this.
then she goes off on the post-modern, annoying and stupid social justice cliches.
The first 2/3 of her letter reminds us WHY society developed a structure where men protected women, with chivalry and rules of behavior.
Then she launches into the EXACT sort of Feminist diatribe that blew all that up.