I don’t see why you keep throwing out the word “hysteria” to everyone that has an opinion different than yours. Maybe you should get some rest.
Because people are predicting nuclear war and are writing in threads about the need to gather food and water for the family. Others, who are slightly more level headed, are equating the bombing with a full on invasion and are claiming Trump has betrayed them.
In general, it's stupidity tinged with hysteria.