Doesn't matter. If he legitimately possesses what he has made unassisted, he legitimately possesses the tools he trades that for, and then legitimately possesses what he makes with the tools, etc.
Irrelevant. Trapper Bruno isn't part of a society, capitalist or communist or otherwise. Barter-trade is more basic than any of that social organisation stuff.The factory worker must turn the product of his labor over to the factory owner....
The evil is in depriving people of their possessions. It makes no difference to Bruno whether the chair is destroyed or taken away by Alfie into the wilderness never to be seen again.Clearly it is morally wrong to wantonly destroy a wooden chair, or trample a garden... ...The evil comes in harming other people -- not in harming "their property".
And it is possession, not ownership. If Alfie steals a chair that Carlos had lent to Bruno, it is still Bruno the possessor not Carlos the owner who is wronged. (What happens when the time comes for Bruno to return it ? Never mind - that's a tangent).
Many societies have a custom which grants travellers a "customary right" of hospitality. It's part of their culture.In many frontier areas, "hosts" had traditiional (if not legal) obligations. If a traveler stopped by on a cold winter night, the person who had built the house was morally obliged to put him up for the night. This was a traditional condition of house "ownership".
But the point of the wilderness setting with the log cabin and all that is that these trappers are outside of society and culture. They are not bound by law and custom. The rights they have are only natural rights. If Trapper Alfie wrongs Trapper Bruno, it is not a wrong because of any statute or custom in the society that they left behind in order to live independent lives in the wilderness, but because it is a wrong in natural law.
What that means is that it is wrong to take another's life and wrong to take another's liberty (i.e. to prevent them from doing what they choose to do). There's an obvious limit on that to avoid contradiction . You have no right to life at the expense of another's life, and no right to liberty at the expense of another's liberty. Hence self-defence is morally permissible and refusing people the liberty to deprive you of the same liberty is permissible.I'd suggest that natural rights, or "unalienable rights" as they are called in the Declaration of Independence include life and liberty.
The liberty that you say that property rights limit is precisely that self-contradictory liberty which can only be realised by depriving another.
As indicated before, the sort of copyright law which I would expect libertarians to support does not prevent you from saying what you want to say (in either spoken or written language), but only from keeping the profit on what is not yours to sell.To return to copyrights, they (and other forms of intellectual property) clearly limit liberty (freedom to say what one wants to say, and write what one wants to write).
Nobody should prevent you from walking down the street expressing yourself by singing someone else's words to someone else's tune. But if you make money out of their words and music you have a moral obligation to give them their fair share of that money.
Social convention may determine how large that fair share is considered to be. But the obligation and right are part of natural law, and not at anybody's whim to grant.