Why do you think the protesters stayed silent when being teased by other patrons?

The protesters likely stayed silent in response to teasing to maintain focus on their cause and avoid escalating the situation. Engaging with hecklers could detract from their message and undermine the seriousness of their protest. Additionally, remaining calm in the face of provocation can demonstrate resilience and strength, potentially garnering more support from onlookers who may sympathize with their cause.