I don't think nostalgia has to be negative.
In order to win you must be prepared to lose sometime. And leave one or two cards showing.
A lot of people who were writing when I came through originally as a singer-songwriter have disappeared.
The future is keeping you out of the present time.
If you're a pop singer, you don't need to evolve. You just get a set together, have some hit songs and play them over and over.
These days politics, religion, media seem to get all mixed up. Television became the new religion a long time back and the media has taken over.