So I got in this debate the other day

I would just shoot him! No but seriously your argument was the right one but realistically it would be more than one person feeling as he does and that's where armed struggle is necessary to the process and Anarchism does become Authoritarian to prevent Counterrevolution, sad but true....

 

I think he'll go bankrott on his very own heap of trading goods - 'cause I wouldn't have a single reason to work/slave for him or buy something from him.
Why buy something from his business - when my syndicate is supporting me with everything I need 'cause I'm part of the local community with all my abilities and needs. If the local syndicate isn't able to give me a specific item 'cause there is no local production, the syndicate will be able to trade with another syndicate if I and all the other people of my group agree about the need to do so. Trading between groups will be a way to avoid only personal interest and capitalist ambition.
Another Idea: Some claim that it will be necessary to abolish the money system because it's vital for capitalism, making an easy way to accumulate profits/values/worth. You can sleep quite comfortable on a shitload of papermoney, but it's not that comfortable to sleep on a big heap of safetey pins you've produced to sell them to rotten 77'scum like me. Somebody still trying the banking business will run out of storage space if a Anarcho-capitalist is trying to deposit his property...
You can still embrace capitalism, it's up to you - but I can't see the reason to do so - blinded by the sheer number of glorious collective alternatives...
It's just the problem that people everywhere are used to the ol' system, but we can tell them/ show them just to make it better, maybe...

 

You'd think the recent collapse of our economy would be all the argument you needed. Eventually the people with more goods/property etc do everything they can to keep it--which means avoid paying the people slaving for you, while getting the most work out of them possible, and then making pacts with other capitalists in a "if you can't beat them, join them" routine that ends with even MORE abuses. I reasearched the hell out of early colonial America, with a focus on Philadelphia history. Our country's first politicians were businessmen, because the logic was that successful businessmen are smarter, more educated, and have more invested in the country/state/city than everyone else. But they were BUSY and didn't want to take responsibility for stuff like making sure the streets had gas lamps and that they actually got lit--it got to the point where a guy got threatened with jail time for trying to refuse the office of mayor. So they started hiring people to represent them. Our first politicians WERE the lobbies--basically thugs hired by businessmen that didn't want to take time away from their businesses to actually run things. They stuffed the ballot boxes, threatened people, and gradually grew more refined in their tactics from there. So the concept of "taking our government back" gets a lot of cynism from me--it was never ours to begin with! We're just trying to take our government, period! But hey, I'm preaching to the choir here.

When I tried explaining that, WITH the facts to back it up -- /points at the Philadelphia: A Three-Hundred Year History, among other things.
I was dismissed as having a too-cynical opinion. People keep using that word, I do not think it means what they think it means. Anyway, as far as I can tell, people want to keep finding excuses why capitalism works, because it's all they know, and they' still have fascist Cold War stuff stuck in their heads. But in the meantime, capitalism gets to keep repeating the same fucked-up pattern, and collapsing, and nobody will admit that in it only works for the few people that make it to the top of the pyramid--and that's only if you don't count the dehumanising aspect of what it takes to be a successful captitalist. I think its hurts everyone, personally. Capitalism is like the sociopathic dog--it doesn't care who feeds it, it'll still bite you in the ass.