This approach has a two fold problem. One, what if you are say Canadian or European, does this mean that America now gets to decide what your kids do and don't

This approach has a two fold problem. One, what if you are say Canadian or European, does this mean that America now gets to decide what your kids do and don't watch? Secondly, this type of action can lead to retaliation and segmentation of the internet into regional entities where you have an American internet, a Russian Internet, a European Internet etc. We have been trying very hard (not fully succufully, see China) to avoid this.