As a bystander, I appreciate what happened to dachidahe. Actually, I am afraid that I could not agree with your view.
for (b), Just like you, he is not Buddha and just one member of us.
for (c), The GC I485 processing is not stock. HOwever, I would compare it to food in cafeteria in high schools. Only after the gate is open, students can buy it. Keep in mind, there is limited time and limited food.
for (d), I can't agree with his proposed behavior. Still, in this contry, everyone has right to express himself.