A first level response would be that you were hired at a salary to do a job. If you can't or won't do a coding job I hire you for, I would back-fill for myself

A first level response would be that you were hired at a salary to do a job. If you can't or won't do a coding job I hire you for, I would back-fill for myself and you would be on the street. (Cost of capital for startups isn't cheap!)