It's exactly the opposite!

If you want to make a living making software, you make it GPL. Any corporation that wants it will need to pay you for a commercially licensed version they can use (it's your code, you can license it in as many ways as you want). The hobbyists can use the free GPL version and the companies can pay you for your work. Win-win.

If you make your software BSD/MIT licenses you can't make any money, every corporation that wants it just takes it for free so you can't make a living out of it. You could try selling support but if your library is great and easy to use, not much money in that.

Unfortunately for you (and me) even if you make a really awesome library and license it as described above, you still can't make a living because there are other similar libraries with MIT/BSD license and the corporations will use those (even if they are inferior to yours) to avoid paying you. Thus, the market for selling software like this has been eliminated and we're stuck selling subscription services.