@1ofthem Christian music is not just people who imitate secular music, stick the word God in their a few times, and call it Christian. A lot of it is truly freeing and encouraging. Since I started listening to Christian music regularly in 2020, my life has changed and I have been very encouraged. More than once, a song has spoken to me or pulled me out of the darkness of depression.
As for secular music, I don't see the purpose in it, it's just empty. Filled with messages about what the world will try to fill the hole in their soul with. A lot of times, it can be negative -- case in point "Imagine" by John Lennon aka Atheist Anthem. This atheistic song in words also has a depressing, low instrumental so I personally don't understand anyone who likes that.
Another thing is that sometimes a secular song can have a message that is not denied by God, sometimes rather affirmed -- just without His name. Case in point -- "Don't You Worry 'Bout a Thing" by Stevie Wonder. The message to not worry about anything is certainly biblical "be anxious for nothing" yet it's not mentioning the solution "in everything pray with thanksgiving." That being said it's still a good song to listen to considering all the garbage out there.