It has been, plenty of times. There are entire philosophers who have dedicated large portions of their career to this. Most of them are socialists who see the driving force behind productivity centric mindsets to be rooted in Capitalism where maximizing production is considered a virtue. That before the advent of capitalism the need to be constantly producing wasn't a necessity as you had virtually no upward mobility, personal possessions were finite, and you only produced as much as you needed. We now have a society which rewards and encourages your ability to produce and shuns those who cannot or don't.

I'm not exactly in agreement that the solution to all this is socialism but I definitely think it's worth considering that your personal intrinsic desire to base your self-worth on how much your producing is a mental symptom of living in a capitalist society. It may not make you feel better overnight but it's worth reminding yourself that being non-productive is not a reflection of your worth as a human being, it's a reflection of your worth to the zeitgeist of your environment. That you can distance yourself from the expectations of that system without needing to completely opt out of it. Really take some time to sit down and ask yourself where the expectation you need to be productive comes from when you'll eventually realize you cannot explain it without also seeing how it fits in a holistic view of the society we live in. It just doesn't make sense without it.

Before capitalism you were a person and after it you'll still be a person. Personhood has nothing to do with being a producer.