"読者が私の物語の一つを嫌おうと構わないただ本を読み終えてくれさえすればいい"

Simplified Meaning:

The person who said this feels that it’s important for readers to complete their books, even if they don’t like all of the stories inside. Imagine if you cooked a big dinner with different dishes, and your friend tried all the food but didn’t like some of it. You’d still appreciate that they made the effort to try everything. It shows that they valued the meal enough to give each dish a chance. Similarly, when someone reads a whole book, even if they don’t enjoy parts of it, it means they respected the writer enough to see it through to the end. For the author, it's not just about pleasing everyone; it's about engaging people to the point where they keep reading. If you don't like a book sometimes, try to finish it anyway. You might find some parts you enjoy or learn something new, and at the very least, you’ve given the author’s work a fair chance.