Because of the spoilers in chapter 332, I have a feeling that Horikoshi will (if not already) be accused of sexism, chauvinism, misogyny and other sins again.
But! Please note that the chapter ends with Cliffhanger very, very beautiful. It's as if the Villain has won, but it's not certain yet.
Star smiles sadly here, her gaze full of defeat and resignation to her fate. She is, however, proud! And most likely Afomura will be left with nothing. Yes, he has already defeated America's Number One Hero, but... will he get her quirk?
I think not. Most likely Star has been informed that Shigaraki Tomura can steal quirks now too, so... she's probably trapped herself.
In this chapter, we were shown flashbacks to when she and her brothers were at the military academy. And it was as if she was considered weak because of a quirk, it's not like she's all-powerful! Of course, she had her suspicions that it could also have been gender stereotypes, but her bros didn't talk about it. They had become a real family, and would go into fire and into water together. So it was natural for Star to sacrifice herself for her brothers.
But. And one wants to defeat the Villain, right?
I don't think Star as a human being is going to die. And as a Hero - she'll be alive, too, because there are those who think she's a hero. But as America's current Number One Hero, she will die. Because she won't have a quirk. She may very well destroy her quirk: “if anyone touches me, my quirk disappears.” The last rule - but a very strong rule - that will rub Afomura's nose in it.
I think Cassie will live, maybe even see Agbar and Toshinori, her idol. And her brothers will survive, too - they will be rescued by the heroes of Japan who rush to the rescue.