But freedom can't exist without drawing boundaries. Not everyone likes to carry responsibilities, so therefore some people consciously or unconsciously opt for less freedom, but feel freer in the process. Everyone has the right to draw his own border where another person is concerned. It's not accidental that someone is sentenced to imprisonment when he exceeds limits or crosses binderies set by society. People are free, unless they exceed the established limits or clearly cross binderies With animals it is more difficult to see whether we have crossed their binderies, we can't communicate with animals about it.
Animals have only limited means to draw borders.
Drawing a border and trying to increase one's own space is natural. When restricting someone else's space, which is an invention of humankind, a human has to justify himself for this act. A human does not have to justify himself where animals are concerned, except in the case of deliberate abuse. According to modern law, the rights of animals kept in factory farms are irrelevant, because animals are objects of law, not subjects of law. According to the constitution there is no legal difference whether you put a piggy bank or a meat pig in a shed for a couple of months.