The real real solution is to legalize housing construction in the area.
I understand there are certain benefits to density and geographic concentration of related companies, but those aren't the only factors we should consider.
http://www.amazondelivers.jobs/about/camperforce/
(it's almost unbelievable)
This scenario is slightly different, but there are certain types of people that prefer to not be tied down or simply have a craving to spend a piece of their lives roving around geographically. Similar mentality to liveaboard sailors and people that seek out work in Antarctica.
My point is that there is a type of person that actually enjoys this type of lifestyle. I don't think Amazon is being nefarious and taking advantage of impoverished RV migrants as much as it's creating a mutually beneficial arrangement.
To be fair, maybe it makes some sense for seasonal work. Or maybe that's just marketing. If the wages are decent, then maybe it's okay.
Also, Amazon has amazing public perception, letting the public know how they can be so cheap and good it's worth doing, just like the campaigns of the past against sweatshop usage by famous clothing brands.
How is the structure of ownership of the company changes the rules of the game for the company? Company's goal is to create value for shareholders.
If you want punish people for having more than others, there's already an instrument for that, progressive taxation.
Except that rich people (and companies) don't pay taxes.