I said that for 13 years before I found why I liked the bass and it all turned around. Now I love the bass and understand why.
Much of the music I like to listen to wasn't what I like to play on bass. Greatfully this has steered my listening taste into many other genres of music. I never in a million thought I'd like Jazz, funk & Motown. Now it's what I respect and admire the most.
No offense to the artists at all, but some music is boring to play on bass period. U2 would be a good example for me. I'd hate to have to play bass for U2. Duga Duga Duga.
But I love U2 as a band. What gives?
The music that utlized the bass in a more detailed or interesting way became my focus. It started with Petite Blonde, then Marcus Miller and then the artists that Marcus associated with.
Luther Vandross, Earth Wind & Fire, then Motown artists utilizing James Jamerson. (Please forgive spelling)
This lead on to far more interesting bass playing. Funk is my favorite. I'm not religious at all but there something about Gospel music that just kicks. Those guys have "feel" in the music.
What you say is so common, it's possibly just the same old rut that everyone gets in at the start of near the start.
If you like singing that cool, add it to bass. If you like guitar, why not? No law says you can only play or do one.
Many great bass players are good guitarists or piano or sax players too.
I like listening to metal but love playing funk.
Just some thoughts that may help.
