Large retailers can't push competitors' products to the back of the shelf to leave their cheaper alternatives in prominent display. This is basically what Amazon does once they develop a Basics product -- push it to the top of your search results, leaving the original producers down at the bottom.
You're joking right? That's literally what grocery stores do. There's an entire strategy to organizing stores, stocking shelves, and designing price tags to funnel customers to store brand products.
And retailers like Target who get consistent customers that compare products in-store just stop carrying their competition.
