1)Thanks for coming up with the "float" (percentage of publicly traded shares) -- I didn't bother because it wasn't necessary to my argument, but it nails a good point: the ones who have, get. The ones who don't have are very unlikely ever to catch up.
2)Private parties can borrow money to buy shares of stock, so it's not crazy to ask how in certain cases a company was purchased by its employees. Nobody is likely to loan Walmart employees money for this purpose.
I think you can get the paper certificates if you want them, though why anyone would is a puzzler to me. They do look nice and some people do collect old stock certificates as art.
I've got a whole drawer of these from the pre-Depression era -- gold mines in Arizona, rail lines, land speculation... you name it. Some of them really are beautiful. My paternal grandfather was a stockbroker who went bust in the Great Depression and that was all that was left. I've never been able to figure out what to do with them.
4)Walmart has a single class of shares, meaning all the shares get an equal vote. Presently Walmart is indeed a controlled company, meaning family members own more than 50% of its shares. You can read about the implications of this relatively new development here
.A lot of other Walmart stock is owned by mutual funds or other firms who generally vote with management, making it even less likely a group of individuals could put together their pennies and buy a controlling interest in the company. Take a look at what your own retirement funds are holding -- you've probably got some WMT in there.
This whole discussion is nuts and, once again, has become a JFH exercise in seeing how long he can get attention and string everyone else along.