When fashion becomes vulgarity ...

Completely agree.

In fact I have met many more hijabis in my life that look at a 'fashionable woman' with preconceived notions and state things like "oh shes not modest, oh shes a slut, oh my god shes not a good muslim"

and have rarely seen a "fashionable girl" say something insulting about a hijabi like "oh all hijabis are hypocrites, oh she just wears that out in the public but when shes at a party she takes it off, bla bla"