Should ALL Christian and Messianic music be worship? Do you agree that most of it is not?
Howdy and welcome to the forum.
Christian music doesn't have to be worship. Some songs have other objectives. Some encourage and exhort. Some deliver a message that is beneficial to dwell on. Some are like good sermons, pointing out things we might not have thought about but really should think about. Some songs are cautionary in nature.
If all Christian songs were worship songs, it would be a rather boring genre. There would be nothing to learn, nothing to inspire, no avenue to warn of dangers.