Imagine you are him.
You tell your students “I am going to give the exam. I would encourage you to come and take it. If you don’t feel safe, then don’t come. But I am going to take a stand against this fear and I encourage you to do the same.”
In response you get threatened by non-students, threatened by students, threatened by the administration all because you didn’t cancel the class.
Is it worth it to stay? Do you see any choice you have but to capitulate to their demands or face an ever increasing barrage of threats and harassment?
No. You tell them “F__k you!” and walk out the door. They (students) don’t want to learn? Fine. Don’t learn. They (administration) don’t want you to teach? Fine. You won’t teach. They (non-student morons) want to threaten and harass you? Fine. I quit.
Shake the dust from your feet and leave the building before it completely burns down.
This is just the beginning and will spread quickly through academia.
Correct answer.
I agree with you. He just said to hell with it. I can’t blame him.
The right “answer” was to state that you trusted the judgement of the school officials to make the right call regarding the severity of the threat and that you would hold class if the school was open and cancel classes if the school did.
Any additional information simply gives the SJWs ammo to be offended by.