Easy for you to say. Try sitting there with insane, frothing at the mouth liberals shrieking at you inches from your ear. They are all unhinged. Is there an assassin among them? It feels like they are inches away from assassination. They might even assassinate a Senator’s spouse rather than the Senator just to ruin his or her life.
It would take stupendous courage to sit through those real threats.
As mentioned, I am not criticizing Cruz. Few people are prepared to deal with such outrageous behavior.
Given your point though -if physical harm is possible, then its better to stay in a crowded public place, than go out into the nighttime street. Even more reason to stay and let the Restaurant make it a police issue.