Nah, it's a general truth. All you can expect from a hippy is the smell of BO and some nonsense about how veganism is the way to go and trees have feelings too. Red flag.
Keyword general. A generalization of people you don't or barely know. There are hippies who cover up BO through organic means. And not all of them have the tendency to push what they believe onto you. For those hippie chicks, green flag.
I live by a philosophy 100% incompatible with hippyism, I'm afraid. Natural soaps used to be a fad, I used some, but they never worked as good as a traditional bar.