If you’d like an excellent explanation of why the Writers Guild of America is on strike, I highly recommend a YouTube video called (a bit melodramatically) Why We Fight. It lays out the issues very clearly.
A friend of mine asked if there’s anything non-writers can do to support the strike. For some excellent answers to that question, take a look at Fans4Writers, a website by… well, by fans. Fans who are for the writers.
You may have figured that out on your own.