A Republican candidate for US Congress interrupted a Muslim community day at the Texas Capitol building, shouting deeply offensive Islamophobic hate speech from a podium. Valentina Gomez infiltrated the event by wearing a hijab, which she removed before yelling racist tropes.
Best thing to do there is not react. Stand in silence.
No. That just legitimizes them. You have to shut them down and march them off stage.
Ignoring bullies only empowers them.