Coltrane, You wrote, "But as bebop became dominant the majority of listeners were forever lost. I don’t mind, because bebop was a natural step for new jazz. Personally, bebop was a statement by certain musicians who felt disrespected. So they created a music that many couldn’t play. Still, the advancement of the music suffered among the masses."
Yes, it's difficult to play bebop well, or any other style of jazz, for that matter, because of the need to improvise. But why was it then, if jazz suffered among the masses due to bebop, that Miles Davis, Gillespie, here I will add Gerry Mulligan and Thelonius Monk, and your namesake Coltrane, sold more albums among them than most any jazz instrumentalists before or since? I just don't agree that bebop alienated listeners; rather, it made jazz musicians and those who listened to their music "cool cats". It was in fashion, then it went out of fashion, like many other cultural phenomena, except for a few diehards like me and many thousands of others who pay high prices for the LPs in that genre. Bebop probably faded on the national scene, because it became repetitious, difficult though it might be. Bebop lived right through and beyond Elvis's peak. It might be more accurate to say the Beatles took over in popularity from everything else musical in the late 60s. On the other hand, I am never caught listening to Vaughn Williams.
There's a vocalise that describes the life and times of bebop, called "Boplicity".