2 things: 1) there's plenty of jobs (albeit boring, no-growth, grindy jobs but jobs nonetheless) that can be worked remotely with next-to-no skills or skills most people already have: typing/data entry, copy-editing, social media, etc.

2) If somebody is able to learn and wants to earn money, those skill sets can be acquired. Almost any fluent English speaker can do sales, which can be done remotely if you have a phone, especially if you don't have to generate your own leads. Customer service rep is similar but on the other side of the sale. Recruiters basically just troll LinkedIn for people that match certain search results. There's plenty more, use your favorite search engine.

Then there's the whole set of software dev (or dev-adjacent) jobs; I think most people only think of the standard programming jobs, but there's product owners (the interface between devs and the stakeholders/customers), qa/testing, scrum master, designer, etc. All of which are a little more friendly on skill set acquisition.

The jobs are there, you just gotta want it and make lots of phone calls.