So if someone opens your unintentionally unlocked front door and steals your laptop, you don't care who's liable?
ETA: There are absolutely burn bans in place in the scenario you're talking about, and common sense prevents those from lighting fires otherwise. In the absolute extreme case that someone _ACCIDENTALLY_ set a fire, without negligence, we have a due process system to handle that. When I see evidence of this for the massive amounts of capital flowing into these companies, I'll gladly eat my words.