Did you ever pause to think why that's the case? That wasn't the case 100 years ago, when Radium was a fun new chemical to paint your teeth with.
We are pretty close because of government regulation, warnings, and yes, lawsuits that punish the companies for being negligent on safety.
>Obviously manufacturers should attempt to minimize the risk but they'll never reduce it to zero.
And obviously, the manufacturers need incentives to do so. Safety warnings aren't just for the consumer - they also make safer products more marketable. And penalties for not doing due diligence won't happen by themselves unless the consumers take an active position, report safety violations to CPSC, and sue to recover the damages.
Someone has to enforce the rules. In the US, the enforcement is shifted to the consumer and the legal system. We have CPSC, NHTSA, FAA - and their reach is still limited, the justification being that it should be up to the courts.
The risks from burning wood in your living room are higher. My wife got burned badly when she was a small kid. We have freezing temperatures 7-8 months a year in this country. So heating requires a lot of energy and with a lot of energy there is always higher risk, whether electric or not.
If you're concerned about exploding lithium ion or lithium polymer devices in your home the only recourse available to you is not to buy any.
If you do that you should also be aware that corded devices also catch fire sometimes though. You should avoid those too.
Maybe just avoid electrical systems entirely.