...just because it is interesting.
"Natural state" is a term with a debatable definition. Is it:
* how it was when the Native Americans lived on it and did whatever they did
* how it was when there are no humans around at all
And these aren't even necessarily the only definitions, or a binary choice (it could be a spectrum/tunable).
When the Bering Strait ice bridge formed and the descendants of native peoples migrated down through the American continent, California was not a dry desert. It was probably covered by lush forests and wetlands with a much lower sea level than today so there's literally no way to return it to that "natural state"
With the Kelp highway hypothesis [1], humans were here for most of that transition so really there's a whole list of "natural states" to pick from (that we largely can't return to)
[1] https://en.wikipedia.org/wiki/Coastal_migration_(Americas)#K...
To convince them to take action you have to validate their self-imposed guilt with images of reverting to noble savages clapping hands and playing pan-flutes around a fire while the animals sway in time to the music.
There was a time I would have said these people need education, now I'll settle for using their guilt to herd them in the correct direction.
When two conflicting woke ideas meet, which one wins?
Here it sounds like white guilt beats environmental virtue signaling.
Which is what's happening.
Its natural state includes devastating wildfires every so often when lightning touches off dry undergrowth that hasn't been cleared away for years.
You will not persuade hardcore preservationists in California by listing out the economic/quality of life benefits of controlled burns. They (and I am generalizing) have a deep passion for returning nature to its natural state.
The key to changing preservationists minds is not to say "there are many benefits to controlled burns (for humans)" but rather, "the state we are creating in forests without burns is not natural."