Thanks, Henry. The people who were put off the most by some caring about the barnacles were the ones caring about turtles the most relative to barnacles. So I think those people are the least likely to help turtles less, and help barnacles more in the future as a result of some caring about the barnacles. The people who were put off the most could still have been polarised, and therefore made less likely to help animals which are less charismatic than turtles, but more than barnacles. However, they could also have been made more likely to help such animals via the radical flank effect. There is going to be variation, but I expect that arguing for considering less charismatic animals tends to have the net effect of more people helping these.
Thanks, Henry. The people who were put off the most by some caring about the barnacles were the ones caring about turtles the most relative to barnacles. So I think those people are the least likely to help turtles less, and help barnacles more in the future as a result of some caring about the barnacles. The people who were put off the most could still have been polarised, and therefore made less likely to help animals which are less charismatic than turtles, but more than barnacles. However, they could also have been made more likely to help such animals via the radical flank effect. There is going to be variation, but I expect that arguing for considering less charismatic animals tends to have the net effect of more people helping these.