Hispanic people what would you do if this happened to you?

So my five friends and I were walking into burger king. This guy behind us loudly said "why are there so many damn Mexicans? Is there a sale on bean burritos or something?" we quickly turned around and looked at him and he looked scared once he saw my guy friends who are 6'4" and who are soccer players. We left the place before someone caused a scene. Btw none of us are mexican we're salvadorean, not that I have anything against Mexicans. What would you have done in this situation.