"There was (is?) a culture in the entertainment industry where successful male performers regarded all females as available."

A culture of misogyny certainly prevailed within a number of industries - most no doubt - up until the recent past. And no doubt does so to a somewhat lesser extent today.

However, I think a culture of both sexism and related agism exclusively towards women are today still probably more prevalent within the entertainment industry/ies than in many others which have moved on. One only has to watch prime time TV (which admittedly I don't anymore) with a clear eye, to see it.