I don't get anxiety with fireworks but have been around dogs that did... so I empathize. I always felt sorriest for dogs because they are scared and don't have any idea what is going on. At least people do. Meanwhile, the fireworks were happening here even in a thunderstorm. People are crazy. Fire is a very old invention.
Also... it's curious to me how we here in the USA love to vilify the Chinese, and we conveniently forget that gunpowder was invented in China... and most of the fireworks people explode on "Independence Day" are either made in China or made in Mexico... two countries we love to put down.
We suck.