An imbecile invents his own explanation for scientific evidence and takes it as absolute fact, as predicted by the scientific evidence.Those studies already start out with a politcal goal in mind. You don't think they are going to structure the questions to suit their goal?
Did you actually read that study, or just link to it as the gospel?
In 2 out of the 3 studies all the participants were undergraduate students. Really got a wide demographic there