This is the 9th Circuit, so don’t get too attached to the ruling, as SCOTUS may overturn it.
As for me, I have to say I stand with the US-flag students. I understand the importance of preventing violence, but hiding the US flag on US soil in favor of the Mexican flag is intolerable for me. I know others will call be me blind or bloody-minded, but for me the honor of the flag requires its defense and what force is needed for its defense should be deployed.