OK, so the US' sovereign wealth fund would be 5-6x less per capita than Norway's, so less effective, but nonetheless capable of benefitting Americans substantially.
Except that ... it doesn't exist, because, from the beginning, we've given it all away to Big Oil, who spend some of it making sure that politicians get elected who keep supporting Big Oil.
So yes, a very fair comparison.
I mean you do have a perfectly valid point but I don’t see something like that working in countries like US or UK (or other countries with large trade deficits). The money would have just been used for general spending and at best would result in lower deficits. Which is of course better than nothing. It’s just that it would be simple politically infeasible and very unpopular to not spend it.