But, to me, short hair is a symbol of slavery. Or of those who imagine themselves slavemasters.
When the "whites" enslaved and herded the "American Indians" into reservations, they forced their children into government schools and cut their hair in order to "civilize" them.
When a person is enslaved (either by force or voluntarily) into the military, their hair gets cut off.
Even some jobs are off-limits to those who don't have the "slave hair".
On the "slavemaster" side of the equation- The cops with the shortest hair are generally the most thuggish. Maybe there is an exception to this observation, but I have yet to see it with my own eyes.
Now, I don't believe that everyone who has short hair is necessarily a slave. If that is what you want, for whatever reason, then no one has any reason to disparage your choice.
I do get very tired of the attitude that says that short hair (and a shaved face) is somehow ethically superior, and that seems obsessed with making sure everyone complies with this "style". It's a value judgement, not a matter of right and wrong.
I'll leave your short hair alone, and I would appreciate the same in return.