Insulting your audience is a well-established rhetorical device. I am not sure the extent to which it is effective. I guess it depends upon your audience. Worked well on boomers, which is maybe why boomers using it on 26 year olds isn’t working out.
"You look like a girl, you little ***! Cut your hair and take off that ridiculous hippie gear and get your ******* life in order you low down piece of garbage!"