Individualism & the illusion of freedom... that's a nice title to a movie.
About "initiation of an aggression", that's soooo subjective! Let's say you own a bank and decided to froze my assets for any reason, that's initiation of an aggression. If my reply comes to be to beat the crap out of you, then it would be self-defense.
Or an aggression to the assets isn't violence?... But if isn't then if you engage a robber you're not self-defending, you're initiate the aggression, after all if you just handle him your stuff he wouldn't harm you.
It is not subjective at all.
Bank froze your assets? It absolutely is the initiation of force and I would support you beating the shit out of the banker to get back your money. That is self defence against aggression.
I dealt with this with my derivation of property rights.
You own yourself. (personal sovereignty)
Your labour is a function of your self.
Thus you own your labour as you own yourself.
Your property is a function of your labour.
Thus you own your property as you own your labour as you own yourself.
Taxation of labour is a claim of ownership of my labour which is thus a claim of ownership of me.
Seizure of my property is a claim of ownership of my property which is a claim of ownership of my labour which is a claim of ownership of me.
No one can own me thus Taxation and Seizure of property is a violation of my personal sovereignty! an act of war of you will.
(note by this reasoning all governments taxation of the labour of its citizens is expression its right of ownership of said citizens)
on an interesting side not I just realised this reasoning is why there is no law in US statutes which states the right of a fedral government to tax the income of its citizens because it would conflict with the abolition of slavery!