This domination of narratives with one narrative, one story, one set of concerns, is an incredibly destructive dynamic in feminism. And it plays out in discussions about pop culture in a major way.
When people in nondominant groups challenge much-beloved popular culture, they encounter a lot of opposition. They are told that the good messages in the pop culture outweigh the bad, that people can't be expected to get everything perfect, that they are just looking for something to be offended by, that they are dragging in side issues, that they are being buzzkills. Bringing in new perspectives can be a dangerous and loaded act when it comes to discussing things that people hold near and dear.
It's impossible to escape the appropriative aspects of the Gaga persona, though. The feminist aspects of her work are deeply tangled with the anti-feminist parts. We probably wouldn't be seeing Gaga's work at all if she didn't meet certain beauty standards applied to pop stars, if her work wasn't appropriative—the crispy feminist interior is wrapped up in a shit sandwich.
It isn't Lady Gaga's fault that appropriation and conventionally attractive women are popular in pop culture and that both of these things are pretty much necessary if you want to be a pop star. And I don't blame Germanotta for creating a character like Lady Gaga to break into the pop scene, because who doesn't want to be a star?