make everyone's voice matter. actually listening to peoples concerns and try to address them. but also, treat everyone as being on the same side. we all want a better life. we should cooperate to achieve that. globally. it takes education. not just STEM, but also moral education. teach people to care about each other and to listen. we need to eliminate prejudice and racism and make it possible to resolve conflicts.
it's a long road to get there. but it's the only way that is going to work.