Mobs:

The presence of those ugly mobs at the US presidential inauguration deserves some comment.

Where did all those unemployables come from?

We all know from experience that competent people do not join mobs. They don't need to. Their energy goes into doing something useful.

It was obvious from the gutter language, signage and antics among the marchers that there were few, if any, competent individuals among them.

It would be quite correct to describe them as pack animals too cowardly to go it alone.