Do you think of women when you think of those terms or only men? If those terms were used in a dismissive, derogatory way, would you not agree that the term is sexist?
Yes, almost all of the bros who fit the stereotype are male, but I've seen a few skateboard and surfer ladies who are just as "bro" as the men.
If there was a term for girl Bernie supporters, would that make this better?
Berniechick?
One can't win this. Man is gonna be argue about genders until the Second Cumming.