You are correct in that there are higher level lessons to be learned and those are very important.
However, at the end of the day where the rubber meets the road you can't ignore frameworks/libraries/languages. You have to learn what the job/market demands. This gets tiring because not only do these tend to be the same thing rehashed over and over again by some new young developer who doesn't have the experience, but they also ignore a lot of the lessons you have learned throughout your career.
Constantly learning can keep things interesting. After several years of re-learning front end frameworks or even back end frameworks with the same result gets tedious and boring.
However, at the end of the day where the rubber meets the road you can't ignore frameworks/libraries/languages. You have to learn what the job/market demands. This gets tiring because not only do these tend to be the same thing rehashed over and over again by some new young developer who doesn't have the experience, but they also ignore a lot of the lessons you have learned throughout your career.
Constantly learning can keep things interesting. After several years of re-learning front end frameworks or even back end frameworks with the same result gets tedious and boring.