Do you live or work with others? Do you have a family or children? Do you interact in meaningful ways with people online? I ask seriously (but no need to reply, this is to aid understanding) as many here on HN do not have all of these so the range of examples may be narrowed for some people.
I would however imagine you have some relationships of some kind that you care about. Can you imagine your relationships changing if these others you cared about changed their behaviours? Then extend this imaginary possibility to the relationships of these others. It's a network we are in we are not operating entirely alone.
Care of the other is wanting what is good for the other.
Sometimes this care is not forcing the other to change, sometimes it's encouraging them to change to benefit them as it benefited you.
How is this not the OP's exact point? If you're not forcing people to change - by banning things with the violence of government - then you're simply making an argument to people and hoping they listen, just as we ever have to.
I would however imagine you have some relationships of some kind that you care about. Can you imagine your relationships changing if these others you cared about changed their behaviours? Then extend this imaginary possibility to the relationships of these others. It's a network we are in we are not operating entirely alone.
Care of the other is wanting what is good for the other.
Sometimes this care is not forcing the other to change, sometimes it's encouraging them to change to benefit them as it benefited you.