In order to have a protect and develop model, the country needs a large educated population and resources to start. There aren't that many continent sized countries left that can be self sufficient to develop their economies. Unless a EU style government forms for Africa and pool their resources, it will be hard for them to follow the protect and develop model. Same for south america.
Protect and develop won't work anymore, if the goal of this model is to shield your own industry from competition while you catch up with your competition, then you will only get further left behind as your competition will gain even further advantage with their existing technology and automation.
If the secondary goal of protect and develop is to just for providing jobs for your own people, then that would work in the short term but it will be very inefficient in the long run, it would be like the Qing Dynasty refuse to open up and still producing by handcraft while the West are producing by assemble line, as time goes on your own technology will get further behind with 0 export potential, while your competition dominate rest of the world trade and eventually move on to a brand new technology that you wouldn't never dream of coming up with. And its only a matter of time that your own country's economy is so backward that other people starting to mess with you.
There is really no good solutions for nations that missed this old development ladder, China was the last and they are literally destroying the ladder as they climb up. The only possible solution I can think of is for rest of the smaller nations to became vessel kingdoms to the top dogs, providing natural resources and sovereign rights, while try to survive on negotiate better returns from their dominate country. That and maybe some tourism currency, and hope that their master country will grow weak and soft, became unstable and destroy themselves in a civil war, so the vessel kingdoms might have a chance to take power from the chaos.