Don't Be A Sucker (1947) (short film warning about fasclsm and the tricks it uses to gain power)

If you actually listen til the end and pay attention, the main speaker explains how he defines "minority" and it is literally every trait which can be used to get the population attacking identities, rather than dealing with people as individuals. Unfortunately it's become all too popular these days, regardless of political leanings, to think there are certain identities it's okay to treat as less than others. (Don't worry, it might sound bad, but we're just making up for past injustice!)