First off, let me state that, yes, I have always been a huge "Duke" fan. I have seen most, if not all, of his movies many, many times over. Even all of those short old black & white ones...including his attempts to be a "singing cowboy".
And I never met the man...so i don't know if he was racist or not.
Nor do I care if California does or does not want to create another local observance.
After all, I don't live in California.
That all being said....
Do we really need more frickin' holidays & observances, anywhere?
I mean, check out the following link.
Most of these I never heard of anyway.
Not to mention, that I'm surprised some of them (like the observance of Robert E. Lee's birthday) aren't cause for riots, in today's crybaby world.
(Especially after seeing people riot because they don't like Trump.)
http://www.timeanddate.com/holidays/us/