Hmmm.... Which constistuency group of the DNC did this "gent" come from?.....
This is nothing more than a rent-a-mob of people with pre-printed signs that can be modified to protest whatever the "capitalist enemy" of the day happens to be.
This is sort of like those Muslim protests you saw in Europe a couple of years ago . . . all of which seemed to have people carrying around signs in English -- with not a single sign to be seen in the native languages of the countries where the protests were held.