I have a long answer and a short answer.
The short answer is "nearly all the people who claim to understand 'true' communism turn into giant jerkwads when they're answering my questions". Their proselytizers are (in general) terrible.
The longer answer is that property is instinctive to humans. It's so instinctive, our dogs get it. They co-evolved with us for so long that they can digest starches. And they very commonly know the difference between 'mine' and 'not mine'.
The short answer is "nearly all the people who claim to understand 'true' communism turn into giant jerkwads when they're answering my questions". Their proselytizers are (in general) terrible.
The longer answer is that property is instinctive to humans. It's so instinctive, our dogs get it. They co-evolved with us for so long that they can digest starches. And they very commonly know the difference between 'mine' and 'not mine'.