Why is it that literary writers rarely can write a good story – some of them being so idiotically preposterous or non-existent that the whole work is unreadable – and “genre” writers often have such terrible writing?

Do good ideas make for terrible writing? And does decent writing somehow make one have no ideas?

That’s not universally true, but it’s 98% true. Most literary writers can barely write a story that a 3-year-old would find plausible or interesting, and most genre writers don’t do much better at writing than a semi-talented 10th grader.

But I can’t understand why.