You're asking how do you stop rain or wind, it's a pretty silly question. There are over 200 countries in the world, with billions of people and many politicians who are trying to carve out different agendas. The only slight effect you might have is by protesting or supporting crypto positive politicians within your own country and it'd probably be best to settle for that. Alternatively you could choose to participate within the developer scene, seeking out and implementing new ideas that chip away at obstacles to adoption - like figuring out ways to reduce transaction fees, increase speed or make miners less energy intensive. Maybe even work with legal services and steer them towards the best balance of laws that protect privacy as much as possible while satisfying anti-criminal action.