Generalizing

So many people are quick to throw around the words 'idiot' and 'stupid,' and usually judge so only at face value regarding a person. Generalizing certain people as idiots does not put any intelligence of yours on display...in fact, quite the opposite.
Especially if the other person just has different beliefs than you. Sound the alarms! Someone has different beliefs! They MUST be an idiot, there is no other reasonable or logical explanation!