That's a shame, but I think there are plenty of precedents of male actors who have likewise done stupid shit because of the bottle, but have gotten help to get out of it, and given second and third chances.
Not all celebrities are created equal, it's true, but I don't think that's a gender thing. Plenty of men cant get work, and plenty of men have gotten blackballed over the years by directors for similar shenanigans. And for what it's worth, I agree both from a sentimental and practical perspective: Sean Young, the ultimate tsundere, has a special place in my heart and that of many others who fell in love with her screen presence in the 80s. That is a very bankable thing, but it takes a professional to cash it in, and she hasn't proven up to the task so far. I wish her really well, believe me.
There are many older actresses that still do look great, and who aren't used as much as I think they should be. Like Susan Sarandon, who I think looks so awesome precisely because she has aged naturally
Susan Sarandon is beautiful and one of a kind. I'm not sure I'd class her as hard-up for work, though. Same with Diane Keaton, Sally Fields, Annette Bening, Kathy Bates, and quite a few other great and talented Hollywood ladies. This isn't exactly the 1950s with respect to movie studios' attitudes towards mature women, in fact they're an incredibly reliable, and thus courted, box office demographic.
I think it's sad that Hollywood continues to make so many movies with elderly gents in the lead role, but never do you see an elderly woman in a lead role. Even the great looking ones.
I'm probably going to get dagger-stares for it, but here is my two cents. And that's really all it is, but here goes anyway. Part of the thing here is that older women don't necessarily want to be, or see, themselves in the lead role of a film. Be honest, and focus for a second not on the rag-flying co-ed Boudicas at the outskirts of culture today, but the warm-steel wisdom of real American family matriarchs. By and large, they aren't looking for superheros, they're looking for stories that ring true to them and their own experiences.