They won't Unionize...so they'll go after Walmart this way.
I think Bill Gates owns 6.5 million shares of Walmart.
As of 12/31/2018 Gates owns 11,603,000 shares of Walmart
valued at $1,080,819,000 or about 4.93% of his portfolio.
https://www.theinvestorspodcast.com/bill-gates-stock-portfolio/