Wait, which is easier/more feasible - adding security to browsers which restricts a fringe usage, or corralling all the router manufacturers to update their sof

Wait, which is easier/more feasible - adding security to browsers which restricts a fringe usage, or corralling all the router manufacturers to update their software to rewrite DNS responses? Wouldn't it result in the same outcome anyway? Based on history I know which group I would expect to implement first.