Libraries are absolutely exactly that. The problem I see is that because this profession is so young, we do not really know how to do anything. For most use cases, there are multiple tools, languages and libraries available, it's a lot of work to find out which to pick.

I am sure that when people started building hats, there was a lot of different ways to do it. Many techniques must have been pretty shitty. Noone knew what the best way is, but eventually, everyone agreed to one (general) shape.

It's possible that the same thing will happen to programming as well. Maybe one day, there will not be more tools for coding REST-APIs (or something similar, in case we find something better than REST), because the one tool everyone uses is already perfect.