@Night Ripper,
Well, people have different understandings of what 'initiation of violence' is. Who started the violence and who has justification to react is a value judgment. It's like figuring out who started a fight; both say the other one started it, and they just responded.
You say if the bank takes your house, it is really you who is initiating the violence, because you didn't pay your loan. But the bank voluntarily gave you that money, they are the ones who introduce active coercion into your transactions.
Therefore leftist anarchists would say that your actions do not excuse the banks use of force. Violence is initiated by those who actively use force first, having been stolen from is not an excuse to employ force. With such a system it wouldn't be possible to develop very sophisticated financial markets, because you only have the honor system to deal with people, but it would exclude all initiation of violence.
Those on the other extreme say that even taking advantage of another persons physical want is initiating violence. Employers can only make workers toil for the meager pay they get because they need the money to buy food. He is therefore forcing them to work for him. Not actively, but scarcity is doing it for him. And that is initiating violence.
Forcedly redistributing his income, or using state force to raise the wages, is not the initiation of violence, because he is the one stealing peoples labor by exploiting them. It would even be
liberal to take such actions, because you aren't free if you are coerced by physical want.
So while I don't think too many people would support initiation of violence, they do have different understandings of what that is. And might support measures that to you see as the initiation of violence. While you support measure that others see as initiation of violence.