A client of mine in America was feeling concerned about all the things and was questioning whether playing D&D was actually doing any good in the world. This week it clicked open for them that there is great good when we engage in role play, learning to work as a group, learning to lean into personal skills and resources, learning the necessity of mutual aid, learning to take risks without knowing the outcome... All of these things are found in playing Dungeons and Dragons as a group.
FANTASY IS THE PROVING GROUND FOR REALITY BUILDING
So, that's it. Build a new world in whatever way makes sense, create it in your mind first and allow your actions to follow naturally. Keep playing, keep trying, keep going.