Why should investors in a predominantly Australian domestic airline (with wet-leased services to Doha and near overseas destinations) be frightened off by the collapse in flights to the USA? How much do you understand about the equity market in Australia?
And why on earth produce a plot of United Airlines and not, say, Qantas? Because its a VA2 partner?

Is it remotely like the investment profile of VA2? Just bizarre.
Maybe Qantas investors will jump ship and go into the Virgin register so they still have airline exposure, but not with the USA hang-up.
By far the bigger risk to the VA IPO is the weak IPO market in Australia, not the USA market which VA2 aren't exposed to.