Over the decades they learned that fighting wild fires is counter-productive. What's left is fighting only fires that endanger humans and human structures and leave the wild ones alone. It's the product of many decades of experience! Which is missing in your statement (the experience), that tries to make this into some weird metaphysical issue.

Just an example: http://www.washington.edu/news/2015/09/17/scientists-let-wil...

Did you know that the earth has a history of 400 million years without humans fighting wildfires? (No big plants before the Devonian period.)

Fires are natural events and are part of the process that made our environment what it is. I recently visited Yosemite park and the giant sequoias, and it was explained that during the last 100 years or so there hadn't been any fires in the sequoias area because, to protect them, all fires were extinguished.

Then it turned out that fires are actually beneficial to sequoias reproduction, because they create an environment that is better suited to giant sequoias than the other kinds of trees. So, protecting them from fire was actually damaging their future...

The northern forests of Canada are a large part Jack Pine, which require fire to open their seed cones and reproduce.

Nature takes care of itself. Constantly putting out fires just ensures the next one is even bigger...