This commemorative beacon lighting is unecessary as California was never invaded by Imperial Japanese forces during World War II.

Meanwhile, countless loyal Japanese-Americans were incarcerated in wrongful internment camps for the duration of the war.

This beacon is a symbol of xenophobia and racism.

I’m not sure I follow your logic. How does it make a difference whether or not they invaded California? It is a remembrance of the attack on Pearl Harbor and those who survived it. The beacon was turned off to prevent the possibility of it being used as a navigation landmark for enemy bombers ,the same way there were city wide blackouts for the same reason. Whether those bombing runs ultimately did or did not occur is irrelevant.
But Japan did carry out military attacks in Santa Barbara and Oregon. A Japanese bomb killed a pregnant woman and five children in Oregon. There were plans for a naval invasion at Ten Mile Beach in Mendocino County, as well as plans for an invasion of the Pacific Northwest by way of British Columbia. The level of armament of the American populace was a major concern.
Also, there were internment camps for Germans as well. German-Americans were attacked during ww1. Is that racist? Is remembering those who died on 9/11 racist and xenophobic?
“War is Hell” and a lot of effed up stuff happens, get over it and move on.

Harrison, may I suggest you read up on the meaning of Pearl Harbor Remembrance Day. It's to remember the 2,403 people who were killed when Pearl Harbor was attacked.

The attack on Pearl Harbor was triggered by U.S. economic sanctions imposed upon Imperial Japan to curtail their expansionism in SE Asia.

Right or wrong, whatever transpired is now a part of past history and hopefully mankind has learned a harsh lesson.

Pearl Harbor and 9/11 were American tragedies but at least we can count on Japan nowadays as a friend of America.

The same cannot be said for most of the Muslim world.

Why not leave the beacon light on at night permanently as a symbol of American freedom and vigilance?

The Mt. Diablo beacon is a symbol of American freedom and should continue to shine brightly as a message to the rest of the global community that America is still the greatest country in the world despite various demographic changes.

Why else would it continue to attract immigrants, both legal and illegal?

This beacon should also shine as an illuminated symbol against racism in America.