Yes, everyone should respond. From the hiring manager side, it's sometimes hard (especially when people argue with you) but I still think it's worth doing. I'm

Yes, everyone should respond. From the hiring manager side, it's sometimes hard (especially when people argue with you) but I still think it's worth doing. I'm sorry you're having a hard time. I'm sure it's very demoralizing to feel like you're applying into a void.