I used the word "they" on purpose, because the target seems to change often. It might be lower class, it might be immigrants (illegal and even legal), it might

I used the word "they" on purpose, because the target seems to change often. It might be lower class, it might be immigrants (illegal and even legal), it might be $racial_minority, political faction, etc,. As long as it's a group that people can blame, it works.