This is a teaching moment. Here is some trolling ammo:

Hey Bernie Bros, how does it feel to be outnumbered and outvoted in your own country?
Hey Bernie Bros, how does it feel to lose control over your own destiny?
Hey Bernie Bros, how does it feel to be replaced by a population that automatically votes for oligarchs who hate you?
Hey Bernie Bros, you'll never get your free college and health care but blacks will always get their welfare.
Hey Bernie Bros, still happy about immigration flipping red states blue? Seems to me you get nothing out of this.