People believe they can safely do it, and believe they don't pose as great of a risk as they actually do.
People believing they can drive safely while drunk is not a belief system. A belief system is a set of set of shared beliefs with others which creates a basic structure for our worldviews to be held with others in society. I'm talking about shared beliefs in a system of shared beliefs, not some some drunk who believes he'll be ok behind the wheel. That not a belief "system". There's no system to it.
And it is a good argument because both deal with public safety and the well being of those who are not the one carrying out these destructive actions. Once that line is crossed, you've lost the "right" to be peacefully left alone.
Are suggesting belief systems should be outlawed? Would you like to see all atheists rounded up and made outlaws for not believing in God? You can't outlaw beliefs, only negative actions.
Society functioned when emptying chamber pots onto public streets was common. We functioned before we realized blood has the potential for carrying diseases. We even survived the height of unfettered and unbridled Capitalism and Industrialism, and things functioned.
They may not have been the Ritz, but they did function. If they didn't, we wouldn't be able to talk about them today, because they would never have survived. What level of quality you may measure them with, is besides the point. They were functional, and served a purpose for a long, long, long time. Beliefs in spirits and demons served a function for them.
And I'm sure they had mentally ill too, who took things to horrible ends.
But that's not even the issue. It's acting on beliefs in a way that has detrimental outcomes for others. Once that happens, damn things like "tradition" and "culture."
One thing you might not be thinking of, is that even in those primitive societies with beliefs in spirits and demons, they didn't necessarily excuse behaviors that took those beliefs to extreme and deadly ends. They had laws too.
Their beliefs are harming others, and that is not cool, good, acceptable, moral, or ethical, especially as the can provide no real reason to do it, as a volcano will blow or not whether or not a human is needlessly butchered.
No. Their beliefs are not harming someone. Their actions are. Not everyone with those beliefs, take actions on them like this, like pouring boiling water down the throat of a child. Even in primitive times, that person would have probably been killed for doing that. That person was dangerous, not because of the beliefs he shared with everyone else.
There are no demons, we know that now, and yet people still die--even in "modern," developed Western and Eastern nations--because people continue to believe in things that have the potential to pose a danger to others.
The point is that the law gives religion a bull**** free pass on breaking the law. Such as Idaho, where religious parents can get off without penalty if they kill their child.
Again, I think you are saying that the beliefs cause these dangerous situations. I don't think that's as supportable a position as you would like it to be. I agree that those who harm their children should be prosecuted. It's considered a matter of public safety.
Are you so sure back in premodern times when beliefs like this were prevalent, that they didn't have laws against pouring boiling water down your child's throat? Or do you honestly believe that was par for the course, everyone did that sort of thing back then, and nobody would say or do anything in response?