Am I "not trusting myself" when I download an open source library instead of reimplementing the wheel? Should I ask a colleague to write a Javascript interpreter from scratch to show my "trust" in them? Should we collectively conspire to make developing software harder so that n00bs will be out of a job and everyone will have less software and services to use, at a more expensive price point?
It's one thing to lament the average quality of devs you're working with, it's another to suggest the problem is to go back to the 1980s and weed out all the beginners who couldn't code without open source libs.