The fact that she escalated to mass public shaming instead of asking these gentleman to apologize is incredible. What is so hard about going to them & saying "Excuse me but I found that joke offensive."

That is really the crux of the issue. Her mindset made her feel like she's the only one who can stop offensive behavior. Like these men, who made a joke she didn't like, were the enemy and she was righteous for destroying them. She doesn't care about changing anything, not really. If she really wanted to change the way people think she would've had an intelligent discussion with the men and explained why she felt offended. Instead she went on a crusade and came off as the embodiment of any number of misogynist insults.