Who needs another big chain?
For the same reason we want locally owned hardware stores as well as Home Depot - the selection. The big chains can afford larger real estate and book sections as large as some book stores. Especially for technical and reference books. Sure, you could buy that stuff online but I’d rather shop in person. Sometimes I need something now and sometimes I don’t know what I need until I’m walking past it. I love the curation and personality of small stores but there’s still a reasonable argument for big chains. I would love to see some sort of beneficial collaboration between chains and indie shops across all industries.
Given the context of your post, I would suggest starting with the basics. Taking the time to learn how to write properly may give you some ability to speak properly.
I don’t know if this is typo or if you think your issue is as big as the ocean.