On one hand, having a cartel of two or three megacorps handling all retail in the US is bad.
On the other hand, replacing a bunch of people driving to Wal-Mart in their gas-guzzling SUVs with a handful of electric delivery vans is kinda good.
https://www.theverge.com/2024/10/31/24284580/chevy-brightdrop-walmart-electric-delivery-van