I have some idea why some people would have to shut down if copyright went away, but I have quibbles with the ethics of their business model anyway. In my case

I have some idea why some people would have to shut down if copyright went away, but I have quibbles with the ethics of their business model anyway. In my case "I get paid to write that which does not exist yet", and in theory that wouldn't change much whether copyright continued to exist or not. (Abolishment immediately without warning would lead to some messy issues that don't fit in the margin of this post. The reason is simply that everyone is used to the current situation. But it'd sort itself out after a year or two. )