Unless those other countries step up and fund it themselves.
They might. They might not.
The technology used on this same article was funded by Max Planck (Germany), Sweden and the NIH to a french and a USA scientist. Should those collaborations stop?
That is changing. Children in my country are moving from learning English to French and German in order to study in European universities. This started after Brexit and will accelerate now.
By pooling our funding / effort we can create a larger body of collaborators to solve problems faster and better.
It could be that the organizations are funding wild stuff that isn’t salient. I’ll concede that.
However, in basic sciences there are so few specialists it is important to share resources. The funding is worse than ever (hello 2006!), and that trend is unlikely to reverse for a while.
Source: I worked in bioenergetics for 10y, my collaborators were from Hungary, Chile, Canada, Israel, Italy, and more! At a major conference on mito energetics they all fit in one big lecture hall (100ish?)