Fully agree with this.
Delaney is allowing himself to be defined and completely consumed by the narrative he has created around this. He is a professional journalist but at the moment his behaviour and conduct is one of an activist.
It's a nuanced and complex issue but there should be a clear distinction between journalism and activism. Either way, Delaney is acting in an erratic and highly-emotional way so you have to worry that his professional life is affecting him personally.
When you look at the volume of tweets he sends, and also the times they are sent, it suggests very little boundary between his personal and work life. That simply can't be good for anyone's mental health no matter what job or sector you work in.