Hey, I grew up in the shadow of Mt. Diablo. Nearly killed myself on that mountain when I wiped out my bike into oncoming traffic.
If he doesn't like the name, I suggest he MOVE somewhere less offensive. That mountain has been around longer than he has.
So did I.
My grandmother was born on it, in Sommersville, in 1889. Her mother was also born on the mountain, in Nortonville, in 1870. Her mother was born in 1848 (2 years prior to statehood) at Benecia Arsenal, an Army brat.
Both mountain towns were coal mining towns, and about all that is left are the cemetaries. The coal was hauled to Pittsburgh Landing, later Pittsburgh, my mother's home town.
When the coal on the mountain played out, Sommersville was uprooted, buildings & all, and moved to Black Diamond, Washington, to form the core of a new town there. It was a company town, owned by the Blackdiamond Coal Company, which also owned the new mine in Washington.