Economics is not a reproducible science, because no system can be properly isolated and initial state can’t be reset. But it’s still a science. It’s in the same category as biology, or even sociology, and it’s way more accurate than the study of brownian systems like meteorology.

“If biologists were so good at their science, they’d all be extremely healthy”?

“If sociologists could predict what humans think, they’d have a job”? In fact competent sociologists do, and generally in marketing departments. Same for economists.