See, if you identify as part of group X, the more likely you will be to align yourself with the characteristics and ideas of group X.
Does that make sense?
For example, I am not from West Texas but I graduated from Texas Tech and I live here now.
I have no real reason to despise Texas A&M, but I have grown to do so.
Red Raiders dislike Aggies and – well – I’m a Red Raider.
This seems silly, but it has larger implications.
For if you can get a group as a whole to lean a slightly certain way, aren’t you simultaneously persuading the individuals too?
PERSUASION TIP 1: When you identify as part of a group, your opinions tend to be biased toward the group consensus.