In spite of an uphill battle, namely that UC Berkeley is well-known for harboring prominent anti-Zionists, Amir has thrived as an educator, activist and community organizer.

Grunhaus has served an essential role in combating the anti-Zionist narrative on campus; releasing public statements, publishing op-eds and organizing educational events. In October 2022, Amir coordinated with members of Tikvah to speak out against a anti-Zionist measure adopted by nine groups at UC Berkeley School of Law that effectively banned Jewish students from club activities. Amir is a CAMERA Fellow alumnus and the president of Tikvah: Students for Israel, a member group of the CAMERA on Campus Coalition.