The entire US ATS is based on the long obsolete flawed premise of "see and be seen"
No, it ain't obsolete and neither it is flawed, it works every day. Whatever you would like to replace it with will also be somehow 'flawed' in the sense that it won't be 100% reliable. By the way, don't try to suggest that US is the only country in the world with 'see and avoid' rules.