I like your points. The only part I think that could still be debated is definition of an artist. Actors and singers are considered by many to be artists (though of course the definition of artist is subjective), and we are far more likely to recognize them in their art than we probably are to recognize, say, a painter or sculptor, thus making it harder not to idolize them as artists.
But I still agree with you.
This is the most tryhard post ever
I bet you tell everyone you hate mainstream movies too, especially if they never ask