I usually do the “push the door out of the way” motion for most people, which reduces needless inconvenience but requires other people to pay some attention to their surroundings. Anyone who has their nose in a phone the whole time deserves to get hit in the face by the door; if you hold the door open for that person, you absolutely are an enabler and should feel ashamed.
It's true, I burn with the shame of extending a once-common courtesy - sometimes even to those who might not really deserve it.