Christians do, some of them, still occassionally remind everyone of the cross although you see the cross as a symbol on churches less and less these days. Within churches you have mass and communion reminding Christians that Christ died for them so they can feed on this truth of perfected human obedience and sacrifice for their sins. Yet often it is forgotten that Christ died on that cross for atheists too. Even an atheist can think of this and have a glimmer of hope that for a time there is provision made even by the God they deny so they can have hope of quitting this denial and escape the sin they have too in this life. There is a glimmer that the love of God which raised His obedient Son from the dead might perhaps have room for them too to provide the power they need to change.
