Here is why anyone is allowed to write a book despite the outcry from traditional publishing. It’s why a market full of substandard books doesn’t destroy anything.
Let’s use something entirely different as an analogy.
Let’s say somebody wants to open a new restaurant in town. The other 10 restaurateurs suspect the new chef doesn’t know what they’re doing.
Does that give them the right to prevent that restaurant from opening? I think not.
Let’s go extreme.
What if 10 new restaurants open in a town that already had 10? Who loses?
If we assume the market can support only 10 restaurants, before long the ones serving garbage will go under ― but it won’t necessarily be the new ones.
Replace “restaurants” with “books” and “chefs” with “authors” and multiply the numbers by a hundred thousand. It’s still true.
Write ’em all and let the market sort it out.