They'll pay the upfront cost, after the big countries follow the US in tearing up climate goals we'll all be in a river of shit.
This is not to dismiss what they're going to suffer through, there are going to be horrifying crimes of humanity committed against them that won't happen to most of the rest of us, I just want to clarify that there is nowhere to go to avoid being impacted by this.
It's also on the day that the US Army has existed for 250 years and supposedly has been in planning for two years per APNews. Not to say Trump won't make it about himself but it's not just his birthday.