Dropshipping as described in the linked article is bullshit. People are not likely to have long term success selling to Americans online if the customers have to wait some undetermined amount of weeks for the goods to come across the ocean.

However, there are plenty of legit dropshippers that sell items already on this side of the ocean. You are probably familiar with Wayfair, but may not know that they were almost 100% drop ship at one time.

A couple years ago, most products sold on their site were still drop shipped, though they were beginning to get some warehouses to hold inventory.

I have done ecom for dropshippers that sold things like furniture, lighting, bean bags, jewelry, and security systems, where the companies were run from one or two room offices and the products shipped from other companies' warehouses in the USA or Canada.

It's very doable once you get the relationships in place. That's not trivial, since these manufacturers and distributors do not make it known that they are willing to drop ship, and they will only do it if you can convince them that you have a legit business already running, but if you get a legit business running and start talking to sales reps, you can absolutely move $500K+ USD worth of product per month without ever looking at it.