[ckocagil]

>Regardless, one has a right to their body. It is their property.

To what extent? Does this principle apply to indentured servitude? How about work related accidents, should a company be legally required to prevent them? Should a mining company pay compensation for the lung damage sustained by their miners, even though that was not in their contract? How about the environment, does this principle imply I have a right to breathe fresh air? How about drinking water?

>Whether laws exist regarding private property (or the lack thereof), we can define a set of natural rights that any person has regardless of any local, regional, or global laws, constructs, or ideologies.

You can, but it doesn't mean I or anyone else will agree to them.

>We can all agree murder is wrong, rape is wrong, stealing is wrong, slavery is wrong

No, we can't. People used to think slavery was ethical. What changed? Raping and plundering used to be ethical for a victorious army. What changed? Today the majority of the world eats meat, and it is very possible that in a century we will be seen as primitive carnivores.

You are also not defining what constitutes these crimes. Is capital punishment murder? Is it murder to kill an enemy soldier? How about an enemy civilian? How about collateral damage? Is it slavery if a company destroys all your other options, forcing you to work for them on their terms?

Is it unethical for companies to collude and fix prices or wages? Is it unethical when workers do the same? Is it unethical when a company pays the local police to break a strike?

The thought that "you only own your body, and you have to earn everything else" falls down pretty quickly once you look outside that idealistic bubble and see historical or ongoing issues.

[quacked]

There's an even more powerful counterargument to the facetious notion that "we all agree that murder/rape/slavery is wrong" than "people used to think it was right".

People today still think those crimes are right, as evidenced by the fact that there are many people who still do them. That's why we have laws against those crimes: to punish the many thousands of people who still attempt to carry them out, and in many cases succeed.

If we could "all agree that they were wrong", then we wouldn't need laws against those crimes, because no one would ever commit them.