Answer to your question/headline title:

Because it's been used to CREATE the wildfires. That's why.

The use of directed energy weapons is a part of geoengineering and it has been used extensively in California. I made a post - The Silent War a while back about this with lots of photographic evidence and links to sites that have documented these criminal acts extensively.

Problem is, too few - including police and fire department cowards - are speaking against it (I guess it keeps their paychecks rolling).