In my view, you were on a roll with this post until you veered off course with the "mere animals..." nonsense.
I think that liberty would be better understood by many more humans if we studied our fellow earthlings' behaviors more closely.
Millions of species have vastly superior survival plans compared to Homo sapiens. Outside of human influence, they operate with impeccable free will.
We are the only species that use cages. No other live form puts each other in prisons.