It's easy to become a financially stable writer if you are willing to put the time into your self promotion which includes knowing how to pursue writing jobs both on and offline.
Yes, true, but one should first note your initial comment about "writers who can barely string 7 words together in a coherent manner." I am constantly amazed and the number of posts asking for good companies to work with, how to get more clients, etc. from users who cannot write a simple, short grammatically correct post. Instead of focusing on where to get work, they should FIRST focus on being the type of quality writer a legitimate company would contract and/or that clients would be proud to refer.
A general note and advice for non-native English speakers: There is no valid reason why anyone who is serious about being an academic writer cannot improve their skills. There's too many free resources online to improve one's skills, so lack of access to learning tools is no excuse. Google can be your friend. Use it. Improve. Then (and only then) seek quality services and clients. :)