I thought it was fairly clear in a context so devoid of nature, natural might suggest logical consequence but you're the second person to quote the word.... So for the record: No, Amazon are not doing it like they do on the Discovery Channel.

And yes, this it a logical side-effect our how our society has developed. Capitalism and globalisation concentrating money into megacorps like Amazon. This is certainly something we can change but the how is kind of important.

I was tackling how states kowtow to big companies to attract and retain them. It sounds like you're in favour of stopping companies ever attaining the critical mass they have, stopping them being a target for that in the first place.

It's an interesting idea, but I suggest it probably breaches a few Constitutional rights. Breaking up massive companies. Limiting companies to sales within their own state, not allowing the transfer of wealth outside the state. All extreme conclusions of stopping an entity like Amazon gaining undue influence.

I'm sure the are some on the far-right who would just suggest a mandated 0% tax. I'm sure states would just find other incentives.

Well, "It's natural" can also mean that it's a state of things that we should accept. Or it could be a reference to a moral framework where virtues are applied to state. It could be arguing that what is happening in the consequence that we expect in all systems at some point. There are lots of uses of the word, and I don't think that any of them really apply well to the current topic.

How to deal with the existence of Amazon? I don't know. My guess is tax policy.