This is a high level of bias and generalization about an enormous group of people with varied backgrounds and experiences, not to mention selection bias as you

This is a high level of bias and generalization about an enormous group of people with varied backgrounds and experiences, not to mention selection bias as you don't know many good coders backgrounds who may in fact be from humanities. Even if many of the bad coders are those who were in humanities and don't have coding experience because they just entered the field (because once you get it you are no longer a humanities background)