Should we spread modern civilization to primitive tribes or leave them undisturbed?

They are our compatriots and we should spread modern civilization to them. They are our brothers and sisters, and we should lead them in their progress. To lead them to modernization, you can choose only some young people or all of them, but it is not mandatory, especially not to hurt their lives and feelings. People are alive, and you are alive. Your lifestyle today was created by Newton and others, not by yourself, so you have no pride, pride and superiority. The lifestyle of others is the lifestyle of human beings tens of thousands of years ago, and it is a living fossil. We should try our best to spread modern civilization to them in a friendly way.