Whoever's downvoting you should be ashamed. The exact effect of Prop 8 was to strip marriage rights from people. And part of why it worked (until struck down in federal court as the civil rights violation its opponents always knew it to be) is the well-funded campaign in favor of it.
There are actual people who have been denied inheritance, denied the right to visit their partner in the hospital, denied the ability to go their loved one's funeral by their family because of prop 8.