It’s important to note how we got here. In old English man just meant human. Wereman meant male and wifman meant female. Over time that “were” prefix got dropped and man now means male but the ambiguous meaning of humankind stuck around. In fact “human” comes from old french “of man”, again the non-gendered use of the word man.
The point is to fix all these problems we just have to bring back the “were”. The progressive werewolves are way ahead of us on this issue.
Use a butane insert. Still refillable but it’s sealed in well enough to last years of infrequent use.